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llvm-project/llvm/test/Transforms/Attributor/value-simplify.ll

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; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --function-signature --check-attributes --check-globals
; RUN: opt -aa-pipeline=basic-aa -passes=attributor -attributor-manifest-internal -attributor-max-iterations-verify -attributor-annotate-decl-cs -attributor-max-iterations=13 -S < %s | FileCheck %s --check-prefixes=CHECK,TUNIT
; RUN: opt -aa-pipeline=basic-aa -passes=attributor-cgscc -attributor-manifest-internal -attributor-annotate-decl-cs -S < %s | FileCheck %s --check-prefixes=CHECK,CGSCC
target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"
declare void @f(i32)
declare token @llvm.call.preallocated.setup(i32)
declare i8* @llvm.call.preallocated.arg(token, i32)
@ConstAS3Ptr = addrspace(3) global i32 0, align 4
;.
; CHECK: @[[CONSTAS3PTR:[a-zA-Z0-9_$"\\.-]+]] = addrspace(3) global i32 0, align 4
; CHECK: @[[S:[a-zA-Z0-9_$"\\.-]+]] = external global [[STRUCT_X:%.*]]
; CHECK: @[[G:[a-zA-Z0-9_$"\\.-]+]] = internal constant { [2 x i8*] } { [2 x i8*] [i8* bitcast (void (i8***)* @f1 to i8*), i8* bitcast (void (i1 (i8*)*)* @f2 to i8*)] }
;.
define internal i32 addrspace(3)* @const_ptr_return_as3() {
; CGSCC: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
; CGSCC-LABEL: define {{[^@]+}}@const_ptr_return_as3
; CGSCC-SAME: () #[[ATTR1:[0-9]+]] {
; CGSCC-NEXT: ret i32 addrspace(3)* @ConstAS3Ptr
;
ret i32 addrspace(3)* @ConstAS3Ptr
}
define internal i32* @const_ptr_return() {
; CGSCC: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
; CGSCC-LABEL: define {{[^@]+}}@const_ptr_return
; CGSCC-SAME: () #[[ATTR1]] {
; CGSCC-NEXT: ret i32* addrspacecast (i32 addrspace(3)* @ConstAS3Ptr to i32*)
;
ret i32* addrspacecast (i32 addrspace(3)* @ConstAS3Ptr to i32*)
}
; Test1: Replace argument with constant
define internal void @test1(i32 %a) {
; CHECK-LABEL: define {{[^@]+}}@test1() {
; CHECK-NEXT: tail call void @f(i32 noundef 1)
; CHECK-NEXT: ret void
;
tail call void @f(i32 %a)
ret void
}
define void @test1_helper() {
; CHECK-LABEL: define {{[^@]+}}@test1_helper() {
; CHECK-NEXT: tail call void @test1()
; CHECK-NEXT: ret void
;
tail call void @test1(i32 1)
ret void
}
; TEST 2 : Simplify return value
define i32 @return0() {
; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
; CHECK-LABEL: define {{[^@]+}}@return0
; CHECK-SAME: () #[[ATTR1:[0-9]+]] {
; CHECK-NEXT: ret i32 0
;
ret i32 0
}
define i32 @return1() {
; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
; CHECK-LABEL: define {{[^@]+}}@return1
; CHECK-SAME: () #[[ATTR1]] {
; CHECK-NEXT: ret i32 1
;
ret i32 1
}
define i32 @test2_1(i1 %c) {
; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
; TUNIT-LABEL: define {{[^@]+}}@test2_1
; TUNIT-SAME: (i1 [[C:%.*]]) #[[ATTR1]] {
; TUNIT-NEXT: br i1 [[C]], label [[IF_TRUE:%.*]], label [[IF_FALSE:%.*]]
; TUNIT: if.true:
; TUNIT-NEXT: [[RET0:%.*]] = add i32 0, 1
; TUNIT-NEXT: br label [[END:%.*]]
; TUNIT: if.false:
; TUNIT-NEXT: br label [[END]]
; TUNIT: end:
; TUNIT-NEXT: [[RET:%.*]] = phi i32 [ [[RET0]], [[IF_TRUE]] ], [ 1, [[IF_FALSE]] ]
; TUNIT-NEXT: ret i32 1
;
; CGSCC: Function Attrs: nofree nosync nounwind willreturn memory(none)
; CGSCC-LABEL: define {{[^@]+}}@test2_1
; CGSCC-SAME: (i1 [[C:%.*]]) #[[ATTR2:[0-9]+]] {
; CGSCC-NEXT: br i1 [[C]], label [[IF_TRUE:%.*]], label [[IF_FALSE:%.*]]
; CGSCC: if.true:
; CGSCC-NEXT: [[CALL:%.*]] = tail call i32 @return0() #[[ATTR12:[0-9]+]]
; CGSCC-NEXT: [[RET0:%.*]] = add i32 [[CALL]], 1
; CGSCC-NEXT: br label [[END:%.*]]
; CGSCC: if.false:
; CGSCC-NEXT: [[RET1:%.*]] = tail call i32 @return1() #[[ATTR12]]
; CGSCC-NEXT: br label [[END]]
; CGSCC: end:
; CGSCC-NEXT: [[RET:%.*]] = phi i32 [ [[RET0]], [[IF_TRUE]] ], [ [[RET1]], [[IF_FALSE]] ]
; CGSCC-NEXT: ret i32 1
;
br i1 %c, label %if.true, label %if.false
if.true:
%call = tail call i32 @return0()
%ret0 = add i32 %call, 1
br label %end
if.false:
%ret1 = tail call i32 @return1()
br label %end
end:
%ret = phi i32 [ %ret0, %if.true ], [ %ret1, %if.false ]
ret i32 1
}
define i32 @test2_2(i1 %c) {
; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
; TUNIT-LABEL: define {{[^@]+}}@test2_2
; TUNIT-SAME: (i1 [[C:%.*]]) #[[ATTR1]] {
; TUNIT-NEXT: ret i32 1
;
; CGSCC: Function Attrs: nofree nosync nounwind willreturn memory(none)
; CGSCC-LABEL: define {{[^@]+}}@test2_2
; CGSCC-SAME: (i1 [[C:%.*]]) #[[ATTR2]] {
; CGSCC-NEXT: [[RET:%.*]] = tail call noundef i32 @test2_1(i1 [[C]]) #[[ATTR12]]
; CGSCC-NEXT: ret i32 [[RET]]
;
%ret = tail call i32 @test2_1(i1 %c)
ret i32 %ret
}
declare void @use(i32)
define void @test3(i1 %c) {
; TUNIT-LABEL: define {{[^@]+}}@test3
; TUNIT-SAME: (i1 [[C:%.*]]) {
; TUNIT-NEXT: br i1 [[C]], label [[IF_TRUE:%.*]], label [[IF_FALSE:%.*]]
; TUNIT: if.true:
; TUNIT-NEXT: br label [[END:%.*]]
; TUNIT: if.false:
; TUNIT-NEXT: br label [[END]]
; TUNIT: end:
; TUNIT-NEXT: [[R:%.*]] = phi i32 [ 1, [[IF_TRUE]] ], [ 1, [[IF_FALSE]] ]
; TUNIT-NEXT: tail call void @use(i32 noundef 1)
; TUNIT-NEXT: ret void
;
; CGSCC-LABEL: define {{[^@]+}}@test3
; CGSCC-SAME: (i1 [[C:%.*]]) {
; CGSCC-NEXT: br i1 [[C]], label [[IF_TRUE:%.*]], label [[IF_FALSE:%.*]]
; CGSCC: if.true:
; CGSCC-NEXT: br label [[END:%.*]]
; CGSCC: if.false:
; CGSCC-NEXT: [[RET1:%.*]] = tail call i32 @return1() #[[ATTR12]]
; CGSCC-NEXT: br label [[END]]
; CGSCC: end:
; CGSCC-NEXT: [[R:%.*]] = phi i32 [ 1, [[IF_TRUE]] ], [ [[RET1]], [[IF_FALSE]] ]
; CGSCC-NEXT: tail call void @use(i32 noundef [[R]])
; CGSCC-NEXT: ret void
;
br i1 %c, label %if.true, label %if.false
if.true:
br label %end
if.false:
%ret1 = tail call i32 @return1()
br label %end
end:
%r = phi i32 [ 1, %if.true ], [ %ret1, %if.false ]
tail call void @use(i32 %r)
ret void
}
define void @test-select-phi(i1 %c) {
; CHECK-LABEL: define {{[^@]+}}@test-select-phi
; CHECK-SAME: (i1 [[C:%.*]]) {
; CHECK-NEXT: tail call void @use(i32 noundef 1)
; CHECK-NEXT: [[SELECT_NOT_SAME:%.*]] = select i1 [[C]], i32 1, i32 0
; CHECK-NEXT: tail call void @use(i32 noundef [[SELECT_NOT_SAME]])
; CHECK-NEXT: br i1 [[C]], label [[IF_TRUE:%.*]], label [[IF_FALSE:%.*]]
; CHECK: if-true:
; CHECK-NEXT: br label [[END:%.*]]
; CHECK: if-false:
; CHECK-NEXT: br label [[END]]
; CHECK: end:
; CHECK-NEXT: [[PHI_SAME:%.*]] = phi i32 [ 1, [[IF_TRUE]] ], [ 1, [[IF_FALSE]] ]
; CHECK-NEXT: [[PHI_NOT_SAME:%.*]] = phi i32 [ 0, [[IF_TRUE]] ], [ 1, [[IF_FALSE]] ]
; CHECK-NEXT: [[PHI_SAME_PROP:%.*]] = phi i32 [ 1, [[IF_TRUE]] ], [ 1, [[IF_FALSE]] ]
; CHECK-NEXT: [[PHI_SAME_UNDEF:%.*]] = phi i32 [ 1, [[IF_TRUE]] ], [ undef, [[IF_FALSE]] ]
; CHECK-NEXT: [[SELECT_NOT_SAME_UNDEF:%.*]] = select i1 [[C]], i32 [[PHI_NOT_SAME]], i32 undef
; CHECK-NEXT: tail call void @use(i32 noundef 1)
; CHECK-NEXT: tail call void @use(i32 noundef [[PHI_NOT_SAME]])
; CHECK-NEXT: tail call void @use(i32 noundef 1)
; CHECK-NEXT: tail call void @use(i32 1)
; CHECK-NEXT: tail call void @use(i32 [[SELECT_NOT_SAME_UNDEF]])
; CHECK-NEXT: ret void
;
%select-same = select i1 %c, i32 1, i32 1
tail call void @use(i32 %select-same)
%select-not-same = select i1 %c, i32 1, i32 0
tail call void @use(i32 %select-not-same)
br i1 %c, label %if-true, label %if-false
if-true:
br label %end
if-false:
br label %end
end:
%phi-same = phi i32 [ 1, %if-true ], [ 1, %if-false ]
%phi-not-same = phi i32 [ 0, %if-true ], [ 1, %if-false ]
%phi-same-prop = phi i32 [ 1, %if-true ], [ %select-same, %if-false ]
%phi-same-undef = phi i32 [ 1, %if-true ], [ undef, %if-false ]
%select-not-same-undef = select i1 %c, i32 %phi-not-same, i32 undef
tail call void @use(i32 %phi-same)
tail call void @use(i32 %phi-not-same)
tail call void @use(i32 %phi-same-prop)
tail call void @use(i32 %phi-same-undef)
tail call void @use(i32 %select-not-same-undef)
ret void
}
define i32 @ipccp1(i32 %a) {
; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
; CHECK-LABEL: define {{[^@]+}}@ipccp1
; CHECK-SAME: (i32 returned [[A:%.*]]) #[[ATTR1]] {
; CHECK-NEXT: br i1 true, label [[T:%.*]], label [[F:%.*]]
; CHECK: t:
; CHECK-NEXT: ret i32 [[A]]
; CHECK: f:
; CHECK-NEXT: unreachable
;
br i1 true, label %t, label %f
t:
ret i32 %a
f:
%r = call i32 @ipccp1(i32 5)
ret i32 %r
}
define internal i1 @ipccp2i(i1 %a) {
; CGSCC: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
; CGSCC-LABEL: define {{[^@]+}}@ipccp2i
; CGSCC-SAME: () #[[ATTR1]] {
; CGSCC-NEXT: br label [[T:%.*]]
; CGSCC: t:
; CGSCC-NEXT: ret i1 true
; CGSCC: f:
; CGSCC-NEXT: unreachable
;
br i1 %a, label %t, label %f
t:
ret i1 %a
f:
%r = call i1 @ipccp2i(i1 false)
ret i1 %r
}
define i1 @ipccp2() {
; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
; TUNIT-LABEL: define {{[^@]+}}@ipccp2
; TUNIT-SAME: () #[[ATTR1]] {
; TUNIT-NEXT: ret i1 true
;
; CGSCC: Function Attrs: nofree nosync nounwind willreturn memory(none)
; CGSCC-LABEL: define {{[^@]+}}@ipccp2
; CGSCC-SAME: () #[[ATTR2]] {
; CGSCC-NEXT: [[R:%.*]] = call noundef i1 @ipccp2i() #[[ATTR12]]
; CGSCC-NEXT: ret i1 [[R]]
;
%r = call i1 @ipccp2i(i1 true)
ret i1 %r
}
define internal i1 @ipccp2ib(i1 %a) {
; CGSCC: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
; CGSCC-LABEL: define {{[^@]+}}@ipccp2ib
; CGSCC-SAME: () #[[ATTR1]] {
; CGSCC-NEXT: br label [[T:%.*]]
; CGSCC: t:
; CGSCC-NEXT: ret i1 true
; CGSCC: f:
; CGSCC-NEXT: unreachable
;
br i1 %a, label %t, label %f
t:
ret i1 true
f:
%r = call i1 @ipccp2ib(i1 false)
ret i1 %r
}
define i1 @ipccp2b() {
; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
; TUNIT-LABEL: define {{[^@]+}}@ipccp2b
; TUNIT-SAME: () #[[ATTR1]] {
; TUNIT-NEXT: ret i1 true
;
; CGSCC: Function Attrs: nofree nosync nounwind willreturn memory(none)
; CGSCC-LABEL: define {{[^@]+}}@ipccp2b
; CGSCC-SAME: () #[[ATTR2]] {
; CGSCC-NEXT: [[R:%.*]] = call noundef i1 @ipccp2ib() #[[ATTR12]]
; CGSCC-NEXT: ret i1 [[R]]
;
%r = call i1 @ipccp2ib(i1 true)
ret i1 %r
}
define internal i32 @ipccp3i(i32 %a) {
; CGSCC: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
; CGSCC-LABEL: define {{[^@]+}}@ipccp3i
; CGSCC-SAME: () #[[ATTR1]] {
; CGSCC-NEXT: br label [[T:%.*]]
; CGSCC: t:
; CGSCC-NEXT: ret i32 7
; CGSCC: f:
; CGSCC-NEXT: unreachable
;
%c = icmp eq i32 %a, 7
br i1 %c, label %t, label %f
t:
ret i32 %a
f:
%r = call i32 @ipccp3i(i32 5)
ret i32 %r
}
define i32 @ipccp3() {
; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
; TUNIT-LABEL: define {{[^@]+}}@ipccp3
; TUNIT-SAME: () #[[ATTR1]] {
; TUNIT-NEXT: ret i32 7
;
; CGSCC: Function Attrs: nofree nosync nounwind willreturn memory(none)
; CGSCC-LABEL: define {{[^@]+}}@ipccp3
; CGSCC-SAME: () #[[ATTR2]] {
; CGSCC-NEXT: [[R:%.*]] = call noundef i32 @ipccp3i() #[[ATTR12]]
; CGSCC-NEXT: ret i32 [[R]]
;
%r = call i32 @ipccp3i(i32 7)
ret i32 %r
}
define internal i32 @ipccp4ia(i1 %c) {
; CGSCC: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
; CGSCC-LABEL: define {{[^@]+}}@ipccp4ia
; CGSCC-SAME: (i1 [[C:%.*]]) #[[ATTR1]] {
; CGSCC-NEXT: br i1 [[C]], label [[T:%.*]], label [[F:%.*]]
; CGSCC: t:
; CGSCC-NEXT: ret i32 0
; CGSCC: f:
; CGSCC-NEXT: ret i32 1
;
br i1 %c, label %t, label %f
t:
ret i32 0
f:
ret i32 1
}
define internal i32 @ipccp4ib(i32 %a) {
; CGSCC: Function Attrs: nofree nosync nounwind willreturn memory(none)
; CGSCC-LABEL: define {{[^@]+}}@ipccp4ib
; CGSCC-SAME: () #[[ATTR2]] {
; CGSCC-NEXT: br label [[T:%.*]]
; CGSCC: t:
; CGSCC-NEXT: [[R:%.*]] = call noundef i32 @ipccp4ia(i1 noundef true) #[[ATTR12]]
; CGSCC-NEXT: ret i32 [[R]]
; CGSCC: f:
; CGSCC-NEXT: unreachable
;
%c = icmp eq i32 %a, 7
br i1 %c, label %t, label %f
t:
%r = call i32 @ipccp4ia(i1 %c)
ret i32 %r
f:
ret i32 1
}
define i32 @ipccp4(i1 %c) {
; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
; TUNIT-LABEL: define {{[^@]+}}@ipccp4
; TUNIT-SAME: (i1 [[C:%.*]]) #[[ATTR1]] {
; TUNIT-NEXT: br i1 [[C]], label [[T:%.*]], label [[F:%.*]]
; TUNIT: t:
; TUNIT-NEXT: br label [[F]]
; TUNIT: f:
; TUNIT-NEXT: ret i32 0
;
; CGSCC: Function Attrs: nofree nosync nounwind willreturn memory(none)
; CGSCC-LABEL: define {{[^@]+}}@ipccp4
; CGSCC-SAME: (i1 [[C:%.*]]) #[[ATTR2]] {
; CGSCC-NEXT: br i1 [[C]], label [[T:%.*]], label [[F:%.*]]
; CGSCC: t:
; CGSCC-NEXT: br label [[F]]
; CGSCC: f:
; CGSCC-NEXT: [[R:%.*]] = call noundef i32 @ipccp4ib() #[[ATTR12]]
; CGSCC-NEXT: ret i32 [[R]]
;
br i1 %c, label %t, label %f
t:
%q = call i32 @ipccp4ia(i1 undef)
br label %f
f:
%r = call i32 @ipccp4ib(i32 7)
ret i32 %r
}
; Do not touch complicated arguments (for now)
%struct.X = type { i8* }
define internal i32* @test_inalloca(i32* inalloca(i32) %a) {
; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
; CHECK-LABEL: define {{[^@]+}}@test_inalloca
; CHECK-SAME: (i32* noalias nofree nonnull returned writeonly inalloca(i32) dereferenceable(4) "no-capture-maybe-returned" [[A:%.*]]) #[[ATTR1]] {
; CHECK-NEXT: ret i32* [[A]]
;
ret i32* %a
}
define i32* @complicated_args_inalloca(i32* %arg) {
; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
; TUNIT-LABEL: define {{[^@]+}}@complicated_args_inalloca
; TUNIT-SAME: (i32* nofree readnone "no-capture-maybe-returned" [[ARG:%.*]]) #[[ATTR1]] {
; TUNIT-NEXT: [[CALL:%.*]] = call nonnull dereferenceable(4) i32* @test_inalloca(i32* noalias nofree writeonly inalloca(i32) "no-capture-maybe-returned" [[ARG]]) #[[ATTR9:[0-9]+]]
; TUNIT-NEXT: ret i32* [[CALL]]
;
; CGSCC: Function Attrs: nofree nosync nounwind willreturn memory(none)
; CGSCC-LABEL: define {{[^@]+}}@complicated_args_inalloca
; CGSCC-SAME: (i32* nofree noundef nonnull readnone dereferenceable(4) [[ARG:%.*]]) #[[ATTR2]] {
; CGSCC-NEXT: [[CALL:%.*]] = call noalias nonnull dereferenceable(4) i32* @test_inalloca(i32* noalias nofree noundef nonnull writeonly inalloca(i32) dereferenceable(4) [[ARG]]) #[[ATTR12]]
; CGSCC-NEXT: ret i32* [[CALL]]
;
%call = call i32* @test_inalloca(i32* inalloca(i32) %arg)
ret i32* %call
}
define internal i32* @test_preallocated(i32* preallocated(i32) %a) {
; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
; CHECK-LABEL: define {{[^@]+}}@test_preallocated
; CHECK-SAME: (i32* noalias nofree noundef nonnull returned writeonly preallocated(i32) align 4294967296 dereferenceable(4) "no-capture-maybe-returned" [[A:%.*]]) #[[ATTR1]] {
; CHECK-NEXT: ret i32* [[A]]
;
ret i32* %a
}
define i32* @complicated_args_preallocated() {
; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn
; TUNIT-LABEL: define {{[^@]+}}@complicated_args_preallocated
; TUNIT-SAME: () #[[ATTR2:[0-9]+]] {
; TUNIT-NEXT: [[C:%.*]] = call token @llvm.call.preallocated.setup(i32 noundef 1) #[[ATTR10:[0-9]+]]
; TUNIT-NEXT: [[CALL:%.*]] = call noundef nonnull align 4294967296 dereferenceable(4) i32* @test_preallocated(i32* noalias nocapture nofree noundef writeonly preallocated(i32) align 4294967296 null) #[[ATTR9]] [ "preallocated"(token [[C]]) ]
; TUNIT-NEXT: ret i32* [[CALL]]
;
; CGSCC: Function Attrs: nofree nosync nounwind willreturn
; CGSCC-LABEL: define {{[^@]+}}@complicated_args_preallocated
; CGSCC-SAME: () #[[ATTR3:[0-9]+]] {
; CGSCC-NEXT: [[C:%.*]] = call token @llvm.call.preallocated.setup(i32 noundef 1) #[[ATTR12]]
; CGSCC-NEXT: [[CALL:%.*]] = call i32* @test_preallocated(i32* noalias nocapture nofree noundef writeonly preallocated(i32) align 4294967296 null) #[[ATTR13:[0-9]+]] [ "preallocated"(token [[C]]) ]
; CGSCC-NEXT: ret i32* null
;
%c = call token @llvm.call.preallocated.setup(i32 1)
%call = call i32* @test_preallocated(i32* preallocated(i32) null) ["preallocated"(token %c)]
ret i32* %call
}
define internal void @test_sret(%struct.X* sret(%struct.X) %a, %struct.X** %b) {
;
; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(argmem: write)
; TUNIT-LABEL: define {{[^@]+}}@test_sret
; TUNIT-SAME: (%struct.X* noalias nofree noundef nonnull writeonly sret([[STRUCT_X:%.*]]) align 4294967296 dereferenceable(8) [[A:%.*]], %struct.X** nocapture nofree noundef nonnull writeonly align 8 dereferenceable(8) [[B:%.*]]) #[[ATTR3:[0-9]+]] {
; TUNIT-NEXT: store %struct.X* [[A]], %struct.X** [[B]], align 8
; TUNIT-NEXT: ret void
;
; CGSCC: Function Attrs: nofree norecurse nosync nounwind willreturn memory(argmem: write)
; CGSCC-LABEL: define {{[^@]+}}@test_sret
; CGSCC-SAME: (%struct.X* noalias nofree noundef nonnull writeonly sret([[STRUCT_X:%.*]]) align 4294967296 dereferenceable(8) [[A:%.*]], %struct.X** nocapture nofree noundef nonnull writeonly align 8 dereferenceable(8) [[B:%.*]]) #[[ATTR4:[0-9]+]] {
; CGSCC-NEXT: store %struct.X* [[A]], %struct.X** [[B]], align 8
; CGSCC-NEXT: ret void
;
store %struct.X* %a, %struct.X** %b
ret void
}
; FIXME: Alignment and dereferenceability are not propagated to the argument
define void @complicated_args_sret(%struct.X** %b) {
;
;
; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(argmem: write)
; TUNIT-LABEL: define {{[^@]+}}@complicated_args_sret
; TUNIT-SAME: (%struct.X** nocapture nofree writeonly [[B:%.*]]) #[[ATTR3]] {
; TUNIT-NEXT: call void @test_sret(%struct.X* noalias nocapture nofree noundef writeonly sret([[STRUCT_X:%.*]]) align 4294967296 null, %struct.X** nocapture nofree writeonly align 8 [[B]]) #[[ATTR9]]
; TUNIT-NEXT: ret void
;
; CGSCC: Function Attrs: nofree nosync nounwind willreturn memory(argmem: write)
; CGSCC-LABEL: define {{[^@]+}}@complicated_args_sret
; CGSCC-SAME: (%struct.X** nocapture nofree noundef nonnull writeonly align 8 dereferenceable(8) [[B:%.*]]) #[[ATTR5:[0-9]+]] {
; CGSCC-NEXT: unreachable
;
call void @test_sret(%struct.X* sret(%struct.X) null, %struct.X** %b)
ret void
}
define internal %struct.X* @test_nest(%struct.X* nest %a) {
; CGSCC: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
; CGSCC-LABEL: define {{[^@]+}}@test_nest
; CGSCC-SAME: (%struct.X* nest noalias nocapture nofree readnone align 4294967296 [[A:%.*]]) #[[ATTR1]] {
; CGSCC-NEXT: ret %struct.X* null
;
ret %struct.X* %a
}
define %struct.X* @complicated_args_nest() {
; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
; TUNIT-LABEL: define {{[^@]+}}@complicated_args_nest
; TUNIT-SAME: () #[[ATTR1]] {
; TUNIT-NEXT: ret %struct.X* null
;
; CGSCC: Function Attrs: nofree nosync nounwind willreturn memory(none)
; CGSCC-LABEL: define {{[^@]+}}@complicated_args_nest
; CGSCC-SAME: () #[[ATTR2]] {
; CGSCC-NEXT: [[CALL:%.*]] = call noalias noundef align 4294967296 %struct.X* @test_nest(%struct.X* noalias nocapture nofree noundef readnone align 4294967296 null) #[[ATTR12]]
; CGSCC-NEXT: ret %struct.X* [[CALL]]
;
%call = call %struct.X* @test_nest(%struct.X* null)
ret %struct.X* %call
}
@S = external global %struct.X
define internal void @test_byval(%struct.X* byval(%struct.X) %a) {
; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(argmem: write)
; TUNIT-LABEL: define {{[^@]+}}@test_byval
; TUNIT-SAME: (i8* [[TMP0:%.*]]) #[[ATTR3]] {
; TUNIT-NEXT: [[A_PRIV:%.*]] = alloca [[STRUCT_X:%.*]], align 8
; TUNIT-NEXT: [[A_PRIV_CAST:%.*]] = bitcast %struct.X* [[A_PRIV]] to i8**
; TUNIT-NEXT: store i8* [[TMP0]], i8** [[A_PRIV_CAST]], align 8
; TUNIT-NEXT: [[G0:%.*]] = getelementptr [[STRUCT_X]], %struct.X* [[A_PRIV]], i32 0, i32 0
; TUNIT-NEXT: store i8* null, i8** [[G0]], align 8
; TUNIT-NEXT: ret void
;
; CGSCC: Function Attrs: nofree norecurse nosync nounwind willreturn memory(argmem: write)
; CGSCC-LABEL: define {{[^@]+}}@test_byval
; CGSCC-SAME: (i8* [[TMP0:%.*]]) #[[ATTR4]] {
; CGSCC-NEXT: [[A_PRIV:%.*]] = alloca [[STRUCT_X:%.*]], align 8
; CGSCC-NEXT: [[A_PRIV_CAST:%.*]] = bitcast %struct.X* [[A_PRIV]] to i8**
; CGSCC-NEXT: store i8* [[TMP0]], i8** [[A_PRIV_CAST]], align 8
; CGSCC-NEXT: [[G0:%.*]] = getelementptr [[STRUCT_X]], %struct.X* [[A_PRIV]], i32 0, i32 0
; CGSCC-NEXT: store i8* null, i8** [[G0]], align 8
; CGSCC-NEXT: ret void
;
%g0 = getelementptr %struct.X, %struct.X* %a, i32 0, i32 0
store i8* null, i8** %g0
ret void
}
define void @complicated_args_byval() {
; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(write)
; TUNIT-LABEL: define {{[^@]+}}@complicated_args_byval
; TUNIT-SAME: () #[[ATTR4:[0-9]+]] {
; TUNIT-NEXT: [[S_CAST:%.*]] = bitcast %struct.X* @S to i8**
; TUNIT-NEXT: [[TMP1:%.*]] = load i8*, i8** [[S_CAST]], align 8
; TUNIT-NEXT: call void @test_byval(i8* [[TMP1]]) #[[ATTR9]]
; TUNIT-NEXT: ret void
;
; CGSCC: Function Attrs: nofree nosync nounwind willreturn
; CGSCC-LABEL: define {{[^@]+}}@complicated_args_byval
; CGSCC-SAME: () #[[ATTR3]] {
; CGSCC-NEXT: [[TMP1:%.*]] = load i8*, i8** getelementptr inbounds ([[STRUCT_X:%.*]], %struct.X* @S, i32 0, i32 0), align 8
; CGSCC-NEXT: call void @test_byval(i8* nofree writeonly [[TMP1]]) #[[ATTR13]]
; CGSCC-NEXT: ret void
;
call void @test_byval(%struct.X* byval(%struct.X) @S)
ret void
}
declare void @sync()
; Make sure we *do not* load @S here!
define internal i8*@test_byval2(%struct.X* byval(%struct.X) %a) {
; CHECK-LABEL: define {{[^@]+}}@test_byval2
; CHECK-SAME: (i8* [[TMP0:%.*]]) {
; CHECK-NEXT: [[A_PRIV:%.*]] = alloca [[STRUCT_X:%.*]], align 8
; CHECK-NEXT: [[A_PRIV_CAST:%.*]] = bitcast %struct.X* [[A_PRIV]] to i8**
; CHECK-NEXT: store i8* [[TMP0]], i8** [[A_PRIV_CAST]], align 8
; CHECK-NEXT: call void @sync()
; CHECK-NEXT: [[G0:%.*]] = getelementptr [[STRUCT_X]], %struct.X* [[A_PRIV]], i32 0, i32 0
; CHECK-NEXT: [[L:%.*]] = load i8*, i8** [[G0]], align 8
; CHECK-NEXT: ret i8* [[L]]
;
call void @sync()
%g0 = getelementptr %struct.X, %struct.X* %a, i32 0, i32 0
%l = load i8*, i8** %g0
ret i8* %l
}
define i8* @complicated_args_byval2() {
;
; TUNIT-LABEL: define {{[^@]+}}@complicated_args_byval2() {
; TUNIT-NEXT: [[S_CAST:%.*]] = bitcast %struct.X* @S to i8**
; TUNIT-NEXT: [[TMP1:%.*]] = load i8*, i8** [[S_CAST]], align 8
; TUNIT-NEXT: [[C:%.*]] = call i8* @test_byval2(i8* [[TMP1]])
; TUNIT-NEXT: ret i8* [[C]]
;
; CGSCC-LABEL: define {{[^@]+}}@complicated_args_byval2() {
; CGSCC-NEXT: [[TMP1:%.*]] = load i8*, i8** getelementptr inbounds ([[STRUCT_X:%.*]], %struct.X* @S, i32 0, i32 0), align 8
; CGSCC-NEXT: [[C:%.*]] = call i8* @test_byval2(i8* [[TMP1]])
; CGSCC-NEXT: ret i8* [[C]]
;
%c = call i8* @test_byval2(%struct.X* byval(%struct.X) @S)
ret i8* %c
}
define void @fixpoint_changed(i32* %p) {
; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(argmem: write)
; TUNIT-LABEL: define {{[^@]+}}@fixpoint_changed
; TUNIT-SAME: (i32* nocapture nofree writeonly [[P:%.*]]) #[[ATTR3]] {
; TUNIT-NEXT: entry:
; TUNIT-NEXT: br label [[FOR_COND:%.*]]
; TUNIT: for.cond:
; TUNIT-NEXT: [[J_0:%.*]] = phi i32 [ 0, [[ENTRY:%.*]] ], [ [[INC:%.*]], [[SW_EPILOG:%.*]] ]
; TUNIT-NEXT: [[CMP:%.*]] = icmp slt i32 [[J_0]], 30
; TUNIT-NEXT: br i1 [[CMP]], label [[FOR_BODY:%.*]], label [[FOR_END:%.*]]
; TUNIT: for.body:
; TUNIT-NEXT: switch i32 [[J_0]], label [[SW_EPILOG]] [
; TUNIT-NEXT: i32 1, label [[SW_BB:%.*]]
; TUNIT-NEXT: ]
; TUNIT: sw.bb:
; TUNIT-NEXT: br label [[SW_EPILOG]]
; TUNIT: sw.epilog:
; TUNIT-NEXT: [[X_0:%.*]] = phi i32 [ 255, [[FOR_BODY]] ], [ 253, [[SW_BB]] ]
; TUNIT-NEXT: store i32 [[X_0]], i32* [[P]], align 4
; TUNIT-NEXT: [[INC]] = add nsw i32 [[J_0]], 1
; TUNIT-NEXT: br label [[FOR_COND]]
; TUNIT: for.end:
; TUNIT-NEXT: ret void
;
; CGSCC: Function Attrs: nofree norecurse nosync nounwind willreturn memory(argmem: write)
; CGSCC-LABEL: define {{[^@]+}}@fixpoint_changed
; CGSCC-SAME: (i32* nocapture nofree writeonly [[P:%.*]]) #[[ATTR4]] {
; CGSCC-NEXT: entry:
; CGSCC-NEXT: br label [[FOR_COND:%.*]]
; CGSCC: for.cond:
; CGSCC-NEXT: [[J_0:%.*]] = phi i32 [ 0, [[ENTRY:%.*]] ], [ [[INC:%.*]], [[SW_EPILOG:%.*]] ]
; CGSCC-NEXT: [[CMP:%.*]] = icmp slt i32 [[J_0]], 30
; CGSCC-NEXT: br i1 [[CMP]], label [[FOR_BODY:%.*]], label [[FOR_END:%.*]]
; CGSCC: for.body:
; CGSCC-NEXT: switch i32 [[J_0]], label [[SW_EPILOG]] [
; CGSCC-NEXT: i32 1, label [[SW_BB:%.*]]
; CGSCC-NEXT: ]
; CGSCC: sw.bb:
; CGSCC-NEXT: br label [[SW_EPILOG]]
; CGSCC: sw.epilog:
; CGSCC-NEXT: [[X_0:%.*]] = phi i32 [ 255, [[FOR_BODY]] ], [ 253, [[SW_BB]] ]
; CGSCC-NEXT: store i32 [[X_0]], i32* [[P]], align 4
; CGSCC-NEXT: [[INC]] = add nsw i32 [[J_0]], 1
; CGSCC-NEXT: br label [[FOR_COND]]
; CGSCC: for.end:
; CGSCC-NEXT: ret void
;
entry:
br label %for.cond
for.cond:
%j.0 = phi i32 [ 0, %entry ], [ %inc, %sw.epilog ]
%cmp = icmp slt i32 %j.0, 30
br i1 %cmp, label %for.body, label %for.end
for.body:
switch i32 %j.0, label %sw.epilog [
i32 1, label %sw.bb
]
sw.bb:
br label %sw.epilog
sw.epilog:
%x.0 = phi i32 [ 255, %for.body ], [ 253, %sw.bb ]
store i32 %x.0, i32* %p
%inc = add nsw i32 %j.0, 1
br label %for.cond
for.end:
ret void
}
; Check we merge undef and a constant properly.
define i8 @caller0() {
; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
; TUNIT-LABEL: define {{[^@]+}}@caller0
; TUNIT-SAME: () #[[ATTR1]] {
; TUNIT-NEXT: ret i8 49
;
; CGSCC: Function Attrs: nofree nosync nounwind willreturn memory(none)
; CGSCC-LABEL: define {{[^@]+}}@caller0
; CGSCC-SAME: () #[[ATTR2]] {
; CGSCC-NEXT: [[C:%.*]] = call noundef i8 @callee() #[[ATTR12]]
; CGSCC-NEXT: ret i8 [[C]]
;
%c = call i8 @callee(i8 undef)
ret i8 %c
}
define i8 @caller1() {
; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
; TUNIT-LABEL: define {{[^@]+}}@caller1
; TUNIT-SAME: () #[[ATTR1]] {
; TUNIT-NEXT: ret i8 49
;
; CGSCC: Function Attrs: nofree nosync nounwind willreturn memory(none)
; CGSCC-LABEL: define {{[^@]+}}@caller1
; CGSCC-SAME: () #[[ATTR2]] {
; CGSCC-NEXT: [[C:%.*]] = call noundef i8 @callee() #[[ATTR12]]
; CGSCC-NEXT: ret i8 [[C]]
;
%c = call i8 @callee(i8 undef)
ret i8 %c
}
define i8 @caller2() {
; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
; TUNIT-LABEL: define {{[^@]+}}@caller2
; TUNIT-SAME: () #[[ATTR1]] {
; TUNIT-NEXT: ret i8 49
;
; CGSCC: Function Attrs: nofree nosync nounwind willreturn memory(none)
; CGSCC-LABEL: define {{[^@]+}}@caller2
; CGSCC-SAME: () #[[ATTR2]] {
; CGSCC-NEXT: [[C:%.*]] = call noundef i8 @callee() #[[ATTR12]]
; CGSCC-NEXT: ret i8 [[C]]
;
%c = call i8 @callee(i8 undef)
ret i8 %c
}
define i8 @caller_middle() {
; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
; TUNIT-LABEL: define {{[^@]+}}@caller_middle
; TUNIT-SAME: () #[[ATTR1]] {
; TUNIT-NEXT: ret i8 49
;
; CGSCC: Function Attrs: nofree nosync nounwind willreturn memory(none)
; CGSCC-LABEL: define {{[^@]+}}@caller_middle
; CGSCC-SAME: () #[[ATTR2]] {
; CGSCC-NEXT: [[C:%.*]] = call noundef i8 @callee() #[[ATTR12]]
; CGSCC-NEXT: ret i8 [[C]]
;
%c = call i8 @callee(i8 42)
ret i8 %c
}
define i8 @caller3() {
; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
; TUNIT-LABEL: define {{[^@]+}}@caller3
; TUNIT-SAME: () #[[ATTR1]] {
; TUNIT-NEXT: ret i8 49
;
; CGSCC: Function Attrs: nofree nosync nounwind willreturn memory(none)
; CGSCC-LABEL: define {{[^@]+}}@caller3
; CGSCC-SAME: () #[[ATTR2]] {
; CGSCC-NEXT: [[C:%.*]] = call noundef i8 @callee() #[[ATTR12]]
; CGSCC-NEXT: ret i8 [[C]]
;
%c = call i8 @callee(i8 undef)
ret i8 %c
}
define i8 @caller4() {
; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
; TUNIT-LABEL: define {{[^@]+}}@caller4
; TUNIT-SAME: () #[[ATTR1]] {
; TUNIT-NEXT: ret i8 49
;
; CGSCC: Function Attrs: nofree nosync nounwind willreturn memory(none)
; CGSCC-LABEL: define {{[^@]+}}@caller4
; CGSCC-SAME: () #[[ATTR2]] {
; CGSCC-NEXT: [[C:%.*]] = call noundef i8 @callee() #[[ATTR12]]
; CGSCC-NEXT: ret i8 [[C]]
;
%c = call i8 @callee(i8 undef)
ret i8 %c
}
define internal i8 @callee(i8 %a) {
; CGSCC: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
; CGSCC-LABEL: define {{[^@]+}}@callee
; CGSCC-SAME: () #[[ATTR1]] {
; CGSCC-NEXT: ret i8 49
;
%c = add i8 %a, 7
ret i8 %c
}
define void @user_as3() {
; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(write)
; TUNIT-LABEL: define {{[^@]+}}@user_as3
; TUNIT-SAME: () #[[ATTR4]] {
; TUNIT-NEXT: store i32 0, i32 addrspace(3)* @ConstAS3Ptr, align 4
; TUNIT-NEXT: ret void
;
; CGSCC: Function Attrs: nofree nosync nounwind willreturn memory(write)
; CGSCC-LABEL: define {{[^@]+}}@user_as3
; CGSCC-SAME: () #[[ATTR6:[0-9]+]] {
; CGSCC-NEXT: [[CALL:%.*]] = call fastcc align 4 i32 addrspace(3)* @const_ptr_return_as3() #[[ATTR12]]
; CGSCC-NEXT: store i32 0, i32 addrspace(3)* [[CALL]], align 4
; CGSCC-NEXT: ret void
;
%call = call fastcc i32 addrspace(3)* @const_ptr_return_as3()
store i32 0, i32 addrspace(3)* %call
ret void
}
define void @user() {
; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(write)
; TUNIT-LABEL: define {{[^@]+}}@user
; TUNIT-SAME: () #[[ATTR4]] {
; TUNIT-NEXT: store i32 0, i32* addrspacecast (i32 addrspace(3)* @ConstAS3Ptr to i32*), align 4
; TUNIT-NEXT: ret void
;
; CGSCC: Function Attrs: nofree nosync nounwind willreturn memory(write)
; CGSCC-LABEL: define {{[^@]+}}@user
; CGSCC-SAME: () #[[ATTR6]] {
; CGSCC-NEXT: [[CALL:%.*]] = call fastcc align 4 i32* @const_ptr_return() #[[ATTR12]]
; CGSCC-NEXT: store i32 0, i32* [[CALL]], align 4
; CGSCC-NEXT: ret void
;
%call = call fastcc i32* @const_ptr_return()
store i32 0, i32* %call
ret void
}
define i1 @test_merge_with_undef_values_ptr(i1 %c) {
; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
; TUNIT-LABEL: define {{[^@]+}}@test_merge_with_undef_values_ptr
; TUNIT-SAME: (i1 [[C:%.*]]) #[[ATTR1]] {
; TUNIT-NEXT: ret i1 false
;
; CGSCC: Function Attrs: nofree nosync nounwind willreturn memory(none)
; CGSCC-LABEL: define {{[^@]+}}@test_merge_with_undef_values_ptr
; CGSCC-SAME: (i1 [[C:%.*]]) #[[ATTR2]] {
; CGSCC-NEXT: [[R1:%.*]] = call noundef i1 @undef_then_null(i1 [[C]]) #[[ATTR12]]
; CGSCC-NEXT: ret i1 [[R1]]
;
%r1 = call i1 @undef_then_null(i1 %c, i32* undef, i32* undef)
ret i1 %r1
}
define internal i1 @undef_then_null(i1 %c, i32* %i32Aptr, i32* %i32Bptr) {
; CGSCC: Function Attrs: nofree nosync nounwind willreturn memory(none)
; CGSCC-LABEL: define {{[^@]+}}@undef_then_null
; CGSCC-SAME: (i1 [[C:%.*]]) #[[ATTR2]] {
; CGSCC-NEXT: br i1 [[C]], label [[A:%.*]], label [[B:%.*]]
; CGSCC: a:
; CGSCC-NEXT: ret i1 false
; CGSCC: b:
; CGSCC-NEXT: ret i1 false
;
%cmp1 = icmp eq i32* %i32Aptr, %i32Bptr
%cmp2 = icmp eq i1 %cmp1, false
%or = or i1 %cmp2, %c
br i1 %or, label %a, label %b
a:
%r2 = call i1 @undef_then_null(i1 false, i32* null, i32* null)
ret i1 %r2
b:
ret i1 %cmp2
}
define i1 @test_merge_with_undef_values(i1 %c) {
; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
; TUNIT-LABEL: define {{[^@]+}}@test_merge_with_undef_values
; TUNIT-SAME: (i1 [[C:%.*]]) #[[ATTR1]] {
; TUNIT-NEXT: ret i1 false
;
; CGSCC: Function Attrs: nofree nosync nounwind willreturn memory(none)
; CGSCC-LABEL: define {{[^@]+}}@test_merge_with_undef_values
; CGSCC-SAME: (i1 [[C:%.*]]) #[[ATTR2]] {
; CGSCC-NEXT: [[R1:%.*]] = call noundef i1 @undef_then_1(i1 [[C]]) #[[ATTR12]]
; CGSCC-NEXT: ret i1 [[R1]]
;
%r1 = call i1 @undef_then_1(i1 %c, i32 undef, i32 undef)
ret i1 %r1
}
define internal i1 @undef_then_1(i1 %c, i32 %i32A, i32 %i32B) {
;
; CGSCC: Function Attrs: nofree nosync nounwind willreturn memory(none)
; CGSCC-LABEL: define {{[^@]+}}@undef_then_1
; CGSCC-SAME: (i1 [[C:%.*]]) #[[ATTR2]] {
; CGSCC-NEXT: br i1 [[C]], label [[A:%.*]], label [[B:%.*]]
; CGSCC: a:
; CGSCC-NEXT: ret i1 false
; CGSCC: b:
; CGSCC-NEXT: ret i1 false
;
%cmp1 = icmp eq i32 %i32A, %i32B
%cmp2 = icmp eq i1 %cmp1, false
%or = or i1 %cmp2, %c
br i1 %or, label %a, label %b
a:
%r2 = call i1 @undef_then_1(i1 false, i32 1, i32 1)
ret i1 %r2
b:
ret i1 %cmp2
}
define i32 @test_select(i32 %c) {
; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
; TUNIT-LABEL: define {{[^@]+}}@test_select
; TUNIT-SAME: (i32 [[C:%.*]]) #[[ATTR1]] {
; TUNIT-NEXT: ret i32 42
;
; CGSCC: Function Attrs: nofree nosync nounwind willreturn memory(none)
; CGSCC-LABEL: define {{[^@]+}}@test_select
; CGSCC-SAME: (i32 [[C:%.*]]) #[[ATTR2]] {
; CGSCC-NEXT: [[CALL:%.*]] = call noundef i32 @select() #[[ATTR12]]
; CGSCC-NEXT: ret i32 [[CALL]]
;
%call = call i32 @select(i1 1, i32 42, i32 %c)
ret i32 %call
}
define internal i32 @select(i1 %a, i32 %b, i32 %c) {
; CGSCC: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
; CGSCC-LABEL: define {{[^@]+}}@select
; CGSCC-SAME: () #[[ATTR1]] {
; CGSCC-NEXT: ret i32 42
;
%s = select i1 %a, i32 %b, i32 %c
ret i32 %s
}
define i1 @icmp() {
; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
; CHECK-LABEL: define {{[^@]+}}@icmp
; CHECK-SAME: () #[[ATTR1]] {
; CHECK-NEXT: ret i1 true
;
%c = icmp eq i8* null, null
ret i1 %c
}
define void @test_callee_is_undef(void (i32)* %fn) {
; TUNIT-LABEL: define {{[^@]+}}@test_callee_is_undef
; TUNIT-SAME: (void (i32)* nocapture nofree [[FN:%.*]]) {
; TUNIT-NEXT: call void @callee_is_undef()
; TUNIT-NEXT: call void @unknown_calle_arg_is_undef(void (i32)* nocapture nofree [[FN]])
; TUNIT-NEXT: ret void
;
; CGSCC-LABEL: define {{[^@]+}}@test_callee_is_undef
; CGSCC-SAME: (void (i32)* nocapture nofree [[FN:%.*]]) {
; CGSCC-NEXT: call void @callee_is_undef()
; CGSCC-NEXT: call void @unknown_calle_arg_is_undef(void (i32)* nocapture nofree noundef nonnull [[FN]])
; CGSCC-NEXT: ret void
;
call void @callee_is_undef(void ()* undef)
call void @unknown_calle_arg_is_undef(void (i32)* %fn, i32 undef)
ret void
}
define internal void @callee_is_undef(void ()* %fn) {
;
; CHECK-LABEL: define {{[^@]+}}@callee_is_undef() {
; CHECK-NEXT: call void poison()
; CHECK-NEXT: ret void
;
call void %fn()
ret void
}
define internal void @unknown_calle_arg_is_undef(void (i32)* %fn, i32 %arg) {
;
; CHECK-LABEL: define {{[^@]+}}@unknown_calle_arg_is_undef
; CHECK-SAME: (void (i32)* nocapture nofree noundef nonnull [[FN:%.*]]) {
; CHECK-NEXT: call void [[FN]](i32 undef)
; CHECK-NEXT: ret void
;
call void %fn(i32 %arg)
ret void
}
; Taken from 50683
; {{{
@g = internal constant { [2 x i8*] } { [2 x i8*] [i8* bitcast (void (i8***)* @f1 to i8*), i8* bitcast (void (i1 (i8*)*)* @f2 to i8*)] }
define internal void @f1(i8*** %a) {
; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(argmem: write)
; TUNIT-LABEL: define {{[^@]+}}@f1
; TUNIT-SAME: (i8*** nocapture nofree noundef nonnull writeonly align 8 dereferenceable(8) [[A:%.*]]) #[[ATTR3]] {
; TUNIT-NEXT: entry:
; TUNIT-NEXT: store i8** getelementptr inbounds ({ [2 x i8*] }, { [2 x i8*] }* @g, i32 0, i32 0, i32 0), i8*** [[A]], align 8
; TUNIT-NEXT: ret void
;
; CGSCC: Function Attrs: nofree norecurse nosync nounwind willreturn memory(argmem: write)
; CGSCC-LABEL: define {{[^@]+}}@f1
; CGSCC-SAME: (i8*** nocapture nofree noundef nonnull writeonly align 8 dereferenceable(8) [[A:%.*]]) #[[ATTR4]] {
; CGSCC-NEXT: entry:
; CGSCC-NEXT: store i8** getelementptr inbounds ({ [2 x i8*] }, { [2 x i8*] }* @g, i32 0, i32 0, i32 0), i8*** [[A]], align 8
; CGSCC-NEXT: ret void
;
entry:
%x = getelementptr { [2 x i8*] }, { [2 x i8*] }* @g, i32 0, i32 0, i32 0
store i8** %x , i8*** %a, align 8
ret void
}
define internal void @f2(i1 (i8*)* %a) {
; CHECK-LABEL: define {{[^@]+}}@f2
; CHECK-SAME: (i1 (i8*)* [[A:%.*]]) {
; CHECK-NEXT: cont461:
; CHECK-NEXT: [[C1:%.*]] = bitcast i1 (i8*)* [[A]] to i8*
; CHECK-NEXT: call void @f3(i8* [[C1]], i1 (i8*)* nocapture nofree [[A]])
; CHECK-NEXT: ret void
;
cont461:
%c1 = bitcast i1 (i8*)* %a to i8*
call void @f3(i8* %c1, i1 (i8*)* %a)
ret void
}
define internal void @f3(i8* %a1, i1 (i8*)* %a) {
; CHECK-LABEL: define {{[^@]+}}@f3
; CHECK-SAME: (i8* [[A1:%.*]], i1 (i8*)* nocapture nofree [[A:%.*]]) {
; CHECK-NEXT: entry:
; CHECK-NEXT: [[CALL20:%.*]] = call i1 @f9()
; CHECK-NEXT: br i1 [[CALL20]], label [[LAND_LHS_TRUE:%.*]], label [[IF_END40:%.*]]
; CHECK: land.lhs.true:
; CHECK-NEXT: [[TMP0:%.*]] = call i1 [[A]](i8* [[A1]])
; CHECK-NEXT: br label [[IF_END40]]
; CHECK: if.end40:
; CHECK-NEXT: ret void
;
entry:
%call20 = call i1 @f9()
br i1 %call20, label %land.lhs.true, label %if.end40
land.lhs.true:
call i1 %a(i8* %a1)
br label %if.end40
if.end40:
ret void
}
define linkonce_odr i1 @f9() {
; CHECK-LABEL: define {{[^@]+}}@f9() {
; CHECK-NEXT: entry:
; CHECK-NEXT: ret i1 false
;
entry:
ret i1 false
}
; }}}
define i1 @test_cmp_null_after_cast() {
; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
; TUNIT-LABEL: define {{[^@]+}}@test_cmp_null_after_cast
; TUNIT-SAME: () #[[ATTR1]] {
; TUNIT-NEXT: ret i1 true
;
; CGSCC: Function Attrs: nofree nosync nounwind willreturn memory(none)
; CGSCC-LABEL: define {{[^@]+}}@test_cmp_null_after_cast
; CGSCC-SAME: () #[[ATTR2]] {
; CGSCC-NEXT: [[C:%.*]] = call noundef i1 @cmp_null_after_cast() #[[ATTR12]]
; CGSCC-NEXT: ret i1 [[C]]
;
%c = call i1 @cmp_null_after_cast(i32 0, i8 0)
ret i1 %c
}
define internal i1 @cmp_null_after_cast(i32 %a, i8 %b) {
; CGSCC: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
; CGSCC-LABEL: define {{[^@]+}}@cmp_null_after_cast
; CGSCC-SAME: () #[[ATTR1]] {
; CGSCC-NEXT: ret i1 true
;
%t = trunc i32 %a to i8
%c = icmp eq i8 %t, %b
ret i1 %c
}
declare i8* @m()
define i32 @test(i1 %c) {
; CHECK-LABEL: define {{[^@]+}}@test
; CHECK-SAME: (i1 [[C:%.*]]) {
; CHECK-NEXT: [[R1:%.*]] = call i32 @ctx_test1(i1 [[C]])
; CHECK-NEXT: [[R2:%.*]] = call i32 @ctx_test2(i1 [[C]])
; CHECK-NEXT: [[ADD:%.*]] = add i32 [[R1]], [[R2]]
; CHECK-NEXT: ret i32 [[ADD]]
;
%r1 = call i32 @ctx_test1(i1 %c)
%r2 = call i32 @ctx_test2(i1 %c)
%add = add i32 %r1, %r2
ret i32 %add
}
define internal i32 @ctx_test1(i1 %c) {
; CHECK-LABEL: define {{[^@]+}}@ctx_test1
; CHECK-SAME: (i1 [[C:%.*]]) {
; CHECK-NEXT: entry:
; CHECK-NEXT: br i1 [[C]], label [[THEN:%.*]], label [[JOIN:%.*]]
; CHECK: then:
; CHECK-NEXT: [[M:%.*]] = tail call i8* @m()
; CHECK-NEXT: [[I:%.*]] = ptrtoint i8* [[M]] to i64
; CHECK-NEXT: br label [[JOIN]]
; CHECK: join:
; CHECK-NEXT: [[PHI:%.*]] = phi i64 [ [[I]], [[THEN]] ], [ undef, [[ENTRY:%.*]] ]
; CHECK-NEXT: [[RET:%.*]] = trunc i64 [[PHI]] to i32
; CHECK-NEXT: ret i32 [[RET]]
;
entry:
br i1 %c, label %then, label %join
then:
%m = tail call i8* @m()
%i = ptrtoint i8* %m to i64
br label %join
join:
%phi = phi i64 [ %i, %then ], [ undef, %entry ]
%ret = trunc i64 %phi to i32
ret i32 %ret
}
define internal i32 @ctx_test2(i1 %c) {
; CHECK-LABEL: define {{[^@]+}}@ctx_test2
; CHECK-SAME: (i1 [[C:%.*]]) {
; CHECK-NEXT: entry:
; CHECK-NEXT: br i1 [[C]], label [[THEN:%.*]], label [[JOIN:%.*]]
; CHECK: then:
; CHECK-NEXT: [[M:%.*]] = tail call i8* @m()
; CHECK-NEXT: [[I:%.*]] = ptrtoint i8* [[M]] to i32
; CHECK-NEXT: br label [[JOIN]]
; CHECK: join:
; CHECK-NEXT: [[PHI:%.*]] = phi i32 [ [[I]], [[THEN]] ], [ undef, [[ENTRY:%.*]] ]
; CHECK-NEXT: [[RET:%.*]] = lshr i32 [[PHI]], 1
; CHECK-NEXT: ret i32 [[RET]]
;
entry:
br i1 %c, label %then, label %join
then:
%m = tail call i8* @m()
%i = ptrtoint i8* %m to i32
br label %join
join:
%phi = phi i32 [ %i, %then ], [ undef, %entry ]
%ret = lshr i32 %phi, 1
ret i32 %ret
uselistorder label %join, { 1, 0 }
}
define i1 @test_liveness(i1 %c) {
; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
; TUNIT-LABEL: define {{[^@]+}}@test_liveness
; TUNIT-SAME: (i1 [[C:%.*]]) #[[ATTR1]] {
; TUNIT-NEXT: entry:
; TUNIT-NEXT: br i1 [[C]], label [[T:%.*]], label [[F:%.*]]
; TUNIT: t:
; TUNIT-NEXT: br label [[F]]
; TUNIT: f:
; TUNIT-NEXT: [[P:%.*]] = phi i1 [ true, [[ENTRY:%.*]] ], [ false, [[T]] ]
; TUNIT-NEXT: [[RC1:%.*]] = call i1 @ret(i1 noundef [[P]]) #[[ATTR9]]
; TUNIT-NEXT: ret i1 [[RC1]]
;
; CGSCC: Function Attrs: nofree nosync nounwind willreturn memory(none)
; CGSCC-LABEL: define {{[^@]+}}@test_liveness
; CGSCC-SAME: (i1 [[C:%.*]]) #[[ATTR2]] {
; CGSCC-NEXT: entry:
; CGSCC-NEXT: br i1 [[C]], label [[T:%.*]], label [[F:%.*]]
; CGSCC: t:
; CGSCC-NEXT: br label [[F]]
; CGSCC: f:
; CGSCC-NEXT: [[P:%.*]] = phi i1 [ true, [[ENTRY:%.*]] ], [ false, [[T]] ]
; CGSCC-NEXT: [[RC1:%.*]] = call noundef i1 @ret(i1 noundef [[P]]) #[[ATTR12]]
; CGSCC-NEXT: ret i1 [[RC1]]
;
entry:
br i1 %c, label %t, label %f
t:
br label %f
f:
%p = phi i1 [true, %entry], [false, %t]
%rc1 = call i1 @ret(i1 %p)
ret i1 %rc1
}
define internal i1 @ret(i1 %c) {
; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
; CHECK-LABEL: define {{[^@]+}}@ret
; CHECK-SAME: (i1 noundef [[C:%.*]]) #[[ATTR1]] {
; CHECK-NEXT: entry:
; CHECK-NEXT: br i1 [[C]], label [[T:%.*]], label [[F:%.*]]
; CHECK: t:
; CHECK-NEXT: br label [[F]]
; CHECK: f:
; CHECK-NEXT: [[P:%.*]] = phi i1 [ [[C]], [[ENTRY:%.*]] ], [ false, [[T]] ]
; CHECK-NEXT: ret i1 [[P]]
;
entry:
br i1 %c, label %t, label %f
t:
br label %f
f:
%p = phi i1 [%c, %entry], [false, %t]
ret i1 %p
}
declare i8* @unknown()
define internal i8 @dead_ret() {
; CHECK-LABEL: define {{[^@]+}}@dead_ret() {
; CHECK-NEXT: [[R:%.*]] = call i8* @unknown()
; CHECK-NEXT: ret i8 undef
;
%r = call i8* @unknown()
%l = load i8, i8* %r
ret i8 %l
}
define void @dead_ret_caller() {
; CHECK-LABEL: define {{[^@]+}}@dead_ret_caller() {
; CHECK-NEXT: [[R:%.*]] = call i8 @dead_ret()
; CHECK-NEXT: ret void
;
%r = call i8 @dead_ret()
ret void
}
declare void @llvm.memcpy(i8* %dest, i8* %src, i32 %len, i1 %isvolatile)
define internal i8 @memcpy_uses_store(i8 %arg) {
; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn
; TUNIT-LABEL: define {{[^@]+}}@memcpy_uses_store
; TUNIT-SAME: (i8 [[ARG:%.*]]) #[[ATTR2]] {
; TUNIT-NEXT: [[SRC:%.*]] = alloca i8, align 1
; TUNIT-NEXT: [[DST:%.*]] = alloca i8, align 1
; TUNIT-NEXT: store i8 [[ARG]], i8* [[SRC]], align 1
; TUNIT-NEXT: call void @llvm.memcpy.p0i8.p0i8.i32(i8* noalias nocapture nofree noundef nonnull writeonly dereferenceable(1) [[DST]], i8* noalias nocapture nofree noundef nonnull readonly dereferenceable(1) [[SRC]], i32 noundef 1, i1 noundef false) #[[ATTR11:[0-9]+]]
; TUNIT-NEXT: [[L:%.*]] = load i8, i8* [[DST]], align 1
; TUNIT-NEXT: ret i8 [[L]]
;
; CGSCC: Function Attrs: nofree norecurse nosync nounwind willreturn
; CGSCC-LABEL: define {{[^@]+}}@memcpy_uses_store
; CGSCC-SAME: (i8 [[ARG:%.*]]) #[[ATTR7:[0-9]+]] {
; CGSCC-NEXT: [[SRC:%.*]] = alloca i8, align 1
; CGSCC-NEXT: [[DST:%.*]] = alloca i8, align 1
; CGSCC-NEXT: store i8 [[ARG]], i8* [[SRC]], align 1
; CGSCC-NEXT: call void @llvm.memcpy.p0i8.p0i8.i32(i8* noalias nocapture nofree noundef nonnull writeonly dereferenceable(1) [[DST]], i8* noalias nocapture nofree noundef nonnull readonly dereferenceable(1) [[SRC]], i32 noundef 1, i1 noundef false) #[[ATTR14:[0-9]+]]
; CGSCC-NEXT: [[L:%.*]] = load i8, i8* [[DST]], align 1
; CGSCC-NEXT: ret i8 [[L]]
;
%src = alloca i8
%dst = alloca i8
store i8 %arg, i8* %src
call void @llvm.memcpy(i8* %dst, i8* %src, i32 1, i1 false)
%l = load i8, i8* %dst
ret i8 %l
}
define i8 @memcpy_uses_store_caller(i8 %arg) {
; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn
; TUNIT-LABEL: define {{[^@]+}}@memcpy_uses_store_caller
; TUNIT-SAME: (i8 [[ARG:%.*]]) #[[ATTR2]] {
; TUNIT-NEXT: [[R:%.*]] = call i8 @memcpy_uses_store(i8 [[ARG]]) #[[ATTR9]]
; TUNIT-NEXT: ret i8 [[R]]
;
; CGSCC: Function Attrs: nofree nosync nounwind willreturn
; CGSCC-LABEL: define {{[^@]+}}@memcpy_uses_store_caller
; CGSCC-SAME: (i8 [[ARG:%.*]]) #[[ATTR3]] {
; CGSCC-NEXT: [[R:%.*]] = call i8 @memcpy_uses_store(i8 [[ARG]]) #[[ATTR13]]
; CGSCC-NEXT: ret i8 [[R]]
;
%r = call i8 @memcpy_uses_store(i8 %arg)
ret i8 %r
}
declare i32 @speculatable() speculatable readnone
define i32 @test_speculatable_expr() norecurse {
; TUNIT: Function Attrs: norecurse nosync memory(none)
; TUNIT-LABEL: define {{[^@]+}}@test_speculatable_expr
; TUNIT-SAME: () #[[ATTR6:[0-9]+]] {
; TUNIT-NEXT: [[STACK:%.*]] = alloca i32, align 4
; TUNIT-NEXT: [[SPEC_RESULT:%.*]] = call i32 @speculatable()
; TUNIT-NEXT: [[PLUS1:%.*]] = add i32 [[SPEC_RESULT]], 1
; TUNIT-NEXT: store i32 [[PLUS1]], i32* [[STACK]], align 4
; TUNIT-NEXT: [[TMP1:%.*]] = load i32, i32* [[STACK]], align 4
; TUNIT-NEXT: [[RSPEC:%.*]] = call i32 @ret_speculatable_expr(i32 [[TMP1]]) #[[ATTR12:[0-9]+]]
; TUNIT-NEXT: ret i32 [[RSPEC]]
;
; CGSCC: Function Attrs: norecurse nosync memory(none)
; CGSCC-LABEL: define {{[^@]+}}@test_speculatable_expr
; CGSCC-SAME: () #[[ATTR9:[0-9]+]] {
; CGSCC-NEXT: [[STACK:%.*]] = alloca i32, align 4
; CGSCC-NEXT: [[SPEC_RESULT:%.*]] = call i32 @speculatable()
; CGSCC-NEXT: [[PLUS1:%.*]] = add i32 [[SPEC_RESULT]], 1
; CGSCC-NEXT: store i32 [[PLUS1]], i32* [[STACK]], align 4
; CGSCC-NEXT: [[RSPEC:%.*]] = call i32 @ret_speculatable_expr(i32 [[PLUS1]])
; CGSCC-NEXT: ret i32 [[RSPEC]]
;
%stack = alloca i32
%spec_result = call i32 @speculatable()
%plus1 = add i32 %spec_result, 1
store i32 %plus1, i32* %stack
%rspec = call i32 @ret_speculatable_expr(i32* %stack, i32 13)
ret i32 %rspec
}
define internal i32 @ret_speculatable_expr(i32* %mem, i32 %a2) {
; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(argmem: read)
; TUNIT-LABEL: define {{[^@]+}}@ret_speculatable_expr
; TUNIT-SAME: (i32 [[TMP0:%.*]]) #[[ATTR7:[0-9]+]] {
; TUNIT-NEXT: [[MEM_PRIV:%.*]] = alloca i32, align 4
; TUNIT-NEXT: store i32 [[TMP0]], i32* [[MEM_PRIV]], align 4
; TUNIT-NEXT: [[L:%.*]] = load i32, i32* [[MEM_PRIV]], align 4
; TUNIT-NEXT: [[MUL:%.*]] = mul i32 [[L]], 13
; TUNIT-NEXT: [[ADD:%.*]] = add i32 [[MUL]], 7
; TUNIT-NEXT: ret i32 [[ADD]]
;
; CGSCC: Function Attrs: nofree norecurse nosync nounwind willreturn memory(argmem: read)
; CGSCC-LABEL: define {{[^@]+}}@ret_speculatable_expr
; CGSCC-SAME: (i32 [[TMP0:%.*]]) #[[ATTR10:[0-9]+]] {
; CGSCC-NEXT: [[MEM_PRIV:%.*]] = alloca i32, align 4
; CGSCC-NEXT: store i32 [[TMP0]], i32* [[MEM_PRIV]], align 4
; CGSCC-NEXT: [[L:%.*]] = load i32, i32* [[MEM_PRIV]], align 4
; CGSCC-NEXT: [[MUL:%.*]] = mul i32 [[L]], 13
; CGSCC-NEXT: [[ADD:%.*]] = add i32 [[MUL]], 7
; CGSCC-NEXT: ret i32 [[ADD]]
;
%l = load i32, i32* %mem
%mul = mul i32 %l, %a2
%add = add i32 %mul, 7
ret i32 %add
}
;.
; TUNIT: attributes #[[ATTR0:[0-9]+]] = { nocallback nofree nosync nounwind willreturn }
; TUNIT: attributes #[[ATTR1]] = { nofree norecurse nosync nounwind willreturn memory(none) }
; TUNIT: attributes #[[ATTR2]] = { nofree norecurse nosync nounwind willreturn }
; TUNIT: attributes #[[ATTR3]] = { nofree norecurse nosync nounwind willreturn memory(argmem: write) }
; TUNIT: attributes #[[ATTR4]] = { nofree norecurse nosync nounwind willreturn memory(write) }
; TUNIT: attributes #[[ATTR5:[0-9]+]] = { speculatable memory(none) }
; TUNIT: attributes #[[ATTR6]] = { norecurse nosync memory(none) }
; TUNIT: attributes #[[ATTR7]] = { nofree norecurse nosync nounwind willreturn memory(argmem: read) }
; TUNIT: attributes #[[ATTR8:[0-9]+]] = { nocallback nofree nounwind willreturn memory(argmem: readwrite) }
; TUNIT: attributes #[[ATTR9]] = { nofree nosync nounwind willreturn }
; TUNIT: attributes #[[ATTR10]] = { willreturn }
; TUNIT: attributes #[[ATTR11]] = { willreturn memory(readwrite) }
; TUNIT: attributes #[[ATTR12]] = { nosync nounwind }
;.
; CGSCC: attributes #[[ATTR0:[0-9]+]] = { nocallback nofree nosync nounwind willreturn }
; CGSCC: attributes #[[ATTR1]] = { nofree norecurse nosync nounwind willreturn memory(none) }
; CGSCC: attributes #[[ATTR2]] = { nofree nosync nounwind willreturn memory(none) }
; CGSCC: attributes #[[ATTR3]] = { nofree nosync nounwind willreturn }
; CGSCC: attributes #[[ATTR4]] = { nofree norecurse nosync nounwind willreturn memory(argmem: write) }
; CGSCC: attributes #[[ATTR5]] = { nofree nosync nounwind willreturn memory(argmem: write) }
; CGSCC: attributes #[[ATTR6]] = { nofree nosync nounwind willreturn memory(write) }
; CGSCC: attributes #[[ATTR7]] = { nofree norecurse nosync nounwind willreturn }
; CGSCC: attributes #[[ATTR8:[0-9]+]] = { speculatable memory(none) }
; CGSCC: attributes #[[ATTR9]] = { norecurse nosync memory(none) }
; CGSCC: attributes #[[ATTR10]] = { nofree norecurse nosync nounwind willreturn memory(argmem: read) }
; CGSCC: attributes #[[ATTR11:[0-9]+]] = { nocallback nofree nounwind willreturn memory(argmem: readwrite) }
; CGSCC: attributes #[[ATTR12]] = { willreturn }
; CGSCC: attributes #[[ATTR13]] = { nounwind willreturn }
; CGSCC: attributes #[[ATTR14]] = { willreturn memory(readwrite) }
;.
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