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llvm-project/llvm/test/Transforms/InstCombine/objsize.ll

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; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; Test a pile of objectsize bounds checking.
; RUN: opt < %s -passes=instcombine -S | FileCheck %s
; We need target data to get the sizes of the arrays and structures.
target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:128:128"
@a = private global [60 x i8] zeroinitializer, align 1 ; <ptr>
@.str = private constant [8 x i8] c"abcdefg\00" ; <ptr>
define i32 @foo() nounwind {
; CHECK-LABEL: @foo(
; CHECK-NEXT: ret i32 60
;
%1 = call i32 @llvm.objectsize.i32.p0(ptr @a, i1 false, i1 false, i1 false)
ret i32 %1
}
define ptr @bar() nounwind {
; CHECK-LABEL: @bar(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[RETVAL:%.*]] = alloca ptr, align 4
; CHECK-NEXT: br i1 true, label [[COND_TRUE:%.*]], label [[COND_FALSE:%.*]]
; CHECK: cond.true:
; CHECK-NEXT: [[TMP0:%.*]] = load ptr, ptr [[RETVAL]], align 4
; CHECK-NEXT: ret ptr [[TMP0]]
; CHECK: cond.false:
; CHECK-NEXT: ret ptr poison
;
entry:
%retval = alloca ptr
%0 = call i32 @llvm.objectsize.i32.p0(ptr @a, i1 false, i1 false, i1 false)
%cmp = icmp ne i32 %0, -1
br i1 %cmp, label %cond.true, label %cond.false
cond.true:
%1 = load ptr, ptr %retval
ret ptr %1
cond.false:
%2 = load ptr, ptr %retval
ret ptr %2
}
define i32 @f() nounwind {
; CHECK-LABEL: @f(
; CHECK-NEXT: ret i32 0
;
%1 = call i32 @llvm.objectsize.i32.p0(ptr getelementptr ([60 x i8], ptr @a, i32 1, i32 0), i1 false, i1 false, i1 false)
ret i32 %1
}
@window = external global [0 x i8]
define i1 @baz() nounwind {
; CHECK-LABEL: @baz(
; CHECK-NEXT: [[TMP1:%.*]] = tail call i32 @llvm.objectsize.i32.p0(ptr @window, i1 false, i1 false, i1 false)
; CHECK-NEXT: [[TMP2:%.*]] = icmp eq i32 [[TMP1]], -1
; CHECK-NEXT: ret i1 [[TMP2]]
;
%1 = tail call i32 @llvm.objectsize.i32.p0(ptr @window, i1 false, i1 false, i1 false)
%2 = icmp eq i32 %1, -1
ret i1 %2
}
define void @test1(ptr %q, i32 %x) nounwind noinline {
; CHECK-LABEL: @test1(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[TMP0:%.*]] = call i32 @llvm.objectsize.i32.p0(ptr getelementptr inbounds ([0 x i8], ptr @window, i32 0, i32 10), i1 false, i1 false, i1 false)
; CHECK-NEXT: [[TMP1:%.*]] = icmp eq i32 [[TMP0]], -1
; CHECK-NEXT: br i1 [[TMP1]], label %"47", label %"46"
; CHECK: "46":
; CHECK-NEXT: unreachable
; CHECK: "47":
; CHECK-NEXT: unreachable
;
entry:
%0 = call i32 @llvm.objectsize.i32.p0(ptr getelementptr inbounds ([0 x i8], ptr @window, i32 0, i32 10), i1 false, i1 false, i1 false) ; <i64> [#uses=1]
%1 = icmp eq i32 %0, -1 ; <i1> [#uses=1]
br i1 %1, label %"47", label %"46"
"46": ; preds = %entry
unreachable
"47": ; preds = %entry
unreachable
}
@.str5 = private constant [9 x i32] [i32 97, i32 98, i32 99, i32 100, i32 0, i32
101, i32 102, i32 103, i32 0], align 4
define i32 @test2() nounwind {
; CHECK-LABEL: @test2(
; CHECK-NEXT: ret i32 34
;
%1 = call i32 @llvm.objectsize.i32.p0(ptr getelementptr (i8, ptr @.str5, i32 2), i1 false, i1 false, i1 false)
ret i32 %1
}
; rdar://7674946
@array = internal global [480 x float] zeroinitializer ; <ptr> [#uses=1]
declare ptr @__memcpy_chk(ptr, ptr, i32, i32) nounwind
declare i32 @llvm.objectsize.i32.p0(ptr, i1, i1, i1) nounwind readonly
declare i32 @llvm.objectsize.i32.p1(ptr addrspace(1), i1, i1, i1) nounwind readonly
declare ptr @__inline_memcpy_chk(ptr, ptr, i32) nounwind inlinehint
define void @test3(i1 %c1, ptr %ptr1, ptr %ptr2, ptr %ptr3) nounwind {
; CHECK-LABEL: @test3(
; CHECK-NEXT: entry:
; CHECK-NEXT: br i1 [[C1:%.*]], label [[BB11:%.*]], label [[BB12:%.*]]
; CHECK: bb11:
; CHECK-NEXT: unreachable
; CHECK: bb12:
; CHECK-NEXT: [[TMP0:%.*]] = call ptr @__inline_memcpy_chk(ptr nonnull getelementptr inbounds ([480 x float], ptr @array, i32 0, i32 1), ptr [[PTR3:%.*]], i32 512) #[[ATTR3:[0-9]+]]
; CHECK-NEXT: unreachable
;
entry:
br i1 %c1, label %bb11, label %bb12
bb11:
%0 = getelementptr inbounds float, ptr getelementptr inbounds ([480 x float], ptr @array, i32 0, i32 128), i32 -127 ; <ptr> [#uses=1]
%1 = call i32 @llvm.objectsize.i32.p0(ptr %0, i1 false, i1 false, i1 false) ; <i32> [#uses=1]
%2 = call ptr @__memcpy_chk(ptr %ptr1, ptr %ptr2, i32 512, i32 %1) nounwind ; <ptr> [#uses=0]
unreachable
bb12:
%3 = getelementptr inbounds float, ptr getelementptr inbounds ([480 x float], ptr @array, i32 0, i32 128), i32 -127 ; <ptr> [#uses=1]
%4 = call ptr @__inline_memcpy_chk(ptr %3, ptr %ptr3, i32 512) nounwind inlinehint ; <ptr> [#uses=0]
unreachable
}
; rdar://7718857
%struct.data = type { [100 x i32], [100 x i32], [1024 x i8] }
define i32 @test4(ptr %esc) nounwind ssp {
; CHECK-LABEL: @test4(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[TMP0:%.*]] = alloca [[STRUCT_DATA:%.*]], align 8
; CHECK-NEXT: call void @llvm.memset.p0.i32(ptr noundef nonnull align 8 dereferenceable(1824) [[TMP0]], i8 0, i32 1824, i1 false) #[[ATTR0:[0-9]+]]
; CHECK-NEXT: store ptr [[TMP0]], ptr [[ESC:%.*]], align 4
; CHECK-NEXT: ret i32 0
;
entry:
%0 = alloca %struct.data, align 8
%1 = call i32 @llvm.objectsize.i32.p0(ptr %0, i1 false, i1 false, i1 false) nounwind
%2 = call ptr @__memset_chk(ptr %0, i32 0, i32 1824, i32 %1) nounwind
store ptr %0, ptr %esc
ret i32 0
}
; rdar://7782496
@s = external global ptr
define ptr @test5(i32 %n) nounwind ssp {
; CHECK-LABEL: @test5(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[TMP0:%.*]] = tail call noalias dereferenceable_or_null(20) ptr @malloc(i32 20) #[[ATTR0]]
; CHECK-NEXT: [[TMP1:%.*]] = load ptr, ptr @s, align 8
; CHECK-NEXT: tail call void @llvm.memcpy.p0.p0.i32(ptr noundef nonnull align 1 dereferenceable(10) [[TMP0]], ptr noundef nonnull align 1 dereferenceable(10) [[TMP1]], i32 10, i1 false) #[[ATTR0]]
; CHECK-NEXT: ret ptr [[TMP0]]
;
entry:
%0 = tail call noalias ptr @malloc(i32 20) nounwind
%1 = tail call i32 @llvm.objectsize.i32.p0(ptr %0, i1 false, i1 false, i1 false)
%2 = load ptr, ptr @s, align 8
%3 = tail call ptr @__memcpy_chk(ptr %0, ptr %2, i32 10, i32 %1) nounwind
ret ptr %0
}
define void @test6(i32 %n) nounwind ssp {
; CHECK-LABEL: @test6(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[TMP0:%.*]] = tail call noalias dereferenceable_or_null(20) ptr @malloc(i32 20) #[[ATTR0]]
; CHECK-NEXT: [[TMP1:%.*]] = load ptr, ptr @s, align 8
; CHECK-NEXT: [[TMP2:%.*]] = tail call ptr @__memcpy_chk(ptr [[TMP0]], ptr [[TMP1]], i32 30, i32 20) #[[ATTR0]]
; CHECK-NEXT: ret void
;
entry:
%0 = tail call noalias ptr @malloc(i32 20) nounwind
%1 = tail call i32 @llvm.objectsize.i32.p0(ptr %0, i1 false, i1 false, i1 false)
%2 = load ptr, ptr @s, align 8
%3 = tail call ptr @__memcpy_chk(ptr %0, ptr %2, i32 30, i32 %1) nounwind
ret void
}
declare ptr @__memset_chk(ptr, i32, i32, i32) nounwind
declare noalias ptr @malloc(i32) nounwind allockind("alloc,uninitialized") allocsize(0)
define i32 @test7(ptr %esc) {
; CHECK-LABEL: @test7(
; CHECK-NEXT: [[ALLOC:%.*]] = call noalias dereferenceable_or_null(48) ptr @malloc(i32 48) #[[ATTR0]]
; CHECK-NEXT: store ptr [[ALLOC]], ptr [[ESC:%.*]], align 4
; CHECK-NEXT: ret i32 32
;
%alloc = call noalias ptr @malloc(i32 48) nounwind
store ptr %alloc, ptr %esc
%gep = getelementptr inbounds i8, ptr %alloc, i32 16
%objsize = call i32 @llvm.objectsize.i32.p0(ptr %gep, i1 false, i1 false, i1 false) nounwind readonly
ret i32 %objsize
}
declare noalias ptr @calloc(i32, i32) nounwind allockind("alloc,zeroed") allocsize(0,1)
define i32 @test8(ptr %esc) {
; CHECK-LABEL: @test8(
; CHECK-NEXT: [[ALLOC:%.*]] = call noalias dereferenceable_or_null(35) ptr @calloc(i32 5, i32 7) #[[ATTR0]]
; CHECK-NEXT: store ptr [[ALLOC]], ptr [[ESC:%.*]], align 4
; CHECK-NEXT: ret i32 30
;
%alloc = call noalias ptr @calloc(i32 5, i32 7) nounwind
store ptr %alloc, ptr %esc
%gep = getelementptr inbounds i8, ptr %alloc, i32 5
%objsize = call i32 @llvm.objectsize.i32.p0(ptr %gep, i1 false, i1 false, i1 false) nounwind readonly
ret i32 %objsize
}
declare noalias ptr @strdup(ptr nocapture) nounwind
declare noalias ptr @strndup(ptr nocapture, i32) nounwind
define i32 @test9(ptr %esc) {
; CHECK-LABEL: @test9(
; CHECK-NEXT: [[CALL:%.*]] = tail call dereferenceable_or_null(8) ptr @strdup(ptr nonnull @.str) #[[ATTR0]]
; CHECK-NEXT: store ptr [[CALL]], ptr [[ESC:%.*]], align 8
; CHECK-NEXT: ret i32 8
;
%call = tail call ptr @strdup(ptr @.str) nounwind
store ptr %call, ptr %esc, align 8
%1 = tail call i32 @llvm.objectsize.i32.p0(ptr %call, i1 true, i1 false, i1 false)
ret i32 %1
}
define i32 @test10(ptr %esc) {
; CHECK-LABEL: @test10(
; CHECK-NEXT: [[CALL:%.*]] = tail call dereferenceable_or_null(4) ptr @strndup(ptr nonnull dereferenceable(8) @.str, i32 3) #[[ATTR0]]
; CHECK-NEXT: store ptr [[CALL]], ptr [[ESC:%.*]], align 8
; CHECK-NEXT: ret i32 4
;
%call = tail call ptr @strndup(ptr @.str, i32 3) nounwind
store ptr %call, ptr %esc, align 8
%1 = tail call i32 @llvm.objectsize.i32.p0(ptr %call, i1 true, i1 false, i1 false)
ret i32 %1
}
define i32 @test11(ptr %esc) {
; CHECK-LABEL: @test11(
; CHECK-NEXT: [[STRDUP:%.*]] = tail call dereferenceable_or_null(8) ptr @strdup(ptr nonnull @.str)
; CHECK-NEXT: store ptr [[STRDUP]], ptr [[ESC:%.*]], align 8
; CHECK-NEXT: ret i32 8
;
%call = tail call ptr @strndup(ptr @.str, i32 7) nounwind
store ptr %call, ptr %esc, align 8
%1 = tail call i32 @llvm.objectsize.i32.p0(ptr %call, i1 true, i1 false, i1 false)
ret i32 %1
}
define i32 @test12(ptr %esc) {
; CHECK-LABEL: @test12(
; CHECK-NEXT: [[STRDUP:%.*]] = tail call dereferenceable_or_null(8) ptr @strdup(ptr nonnull @.str)
; CHECK-NEXT: store ptr [[STRDUP]], ptr [[ESC:%.*]], align 8
; CHECK-NEXT: ret i32 8
;
%call = tail call ptr @strndup(ptr @.str, i32 8) nounwind
store ptr %call, ptr %esc, align 8
%1 = tail call i32 @llvm.objectsize.i32.p0(ptr %call, i1 true, i1 false, i1 false)
ret i32 %1
}
define i32 @test13(ptr %esc) {
; CHECK-LABEL: @test13(
; CHECK-NEXT: [[STRDUP:%.*]] = tail call dereferenceable_or_null(8) ptr @strdup(ptr nonnull @.str)
; CHECK-NEXT: store ptr [[STRDUP]], ptr [[ESC:%.*]], align 8
; CHECK-NEXT: ret i32 8
;
%call = tail call ptr @strndup(ptr @.str, i32 57) nounwind
store ptr %call, ptr %esc, align 8
%1 = tail call i32 @llvm.objectsize.i32.p0(ptr %call, i1 true, i1 false, i1 false)
ret i32 %1
}
@globalalias = internal alias [60 x i8], ptr @a
define i32 @test18() {
; CHECK-LABEL: @test18(
; CHECK-NEXT: ret i32 60
;
%1 = call i32 @llvm.objectsize.i32.p0(ptr @globalalias, i1 false, i1 false, i1 false)
ret i32 %1
}
@globalalias2 = weak alias [60 x i8], ptr @a
define i32 @test19() {
; CHECK-LABEL: @test19(
; CHECK-NEXT: [[TMP1:%.*]] = call i32 @llvm.objectsize.i32.p0(ptr @globalalias2, i1 false, i1 false, i1 false)
; CHECK-NEXT: ret i32 [[TMP1]]
;
%1 = call i32 @llvm.objectsize.i32.p0(ptr @globalalias2, i1 false, i1 false, i1 false)
ret i32 %1
}
define i32 @test20() {
; CHECK-LABEL: @test20(
; CHECK-NEXT: ret i32 0
;
%1 = call i32 @llvm.objectsize.i32.p0(ptr null, i1 false, i1 false, i1 false)
ret i32 %1
}
define i32 @test21() {
; CHECK-LABEL: @test21(
; CHECK-NEXT: ret i32 0
;
%1 = call i32 @llvm.objectsize.i32.p0(ptr null, i1 true, i1 false, i1 false)
ret i32 %1
}
define i32 @test22() {
; CHECK-LABEL: @test22(
; CHECK-NEXT: [[TMP1:%.*]] = call i32 @llvm.objectsize.i32.p0(ptr null, i1 false, i1 true, i1 false)
; CHECK-NEXT: ret i32 [[TMP1]]
;
%1 = call i32 @llvm.objectsize.i32.p0(ptr null, i1 false, i1 true, i1 false)
ret i32 %1
}
define i32 @test23() {
; CHECK-LABEL: @test23(
; CHECK-NEXT: [[TMP1:%.*]] = call i32 @llvm.objectsize.i32.p0(ptr null, i1 true, i1 true, i1 false)
; CHECK-NEXT: ret i32 [[TMP1]]
;
%1 = call i32 @llvm.objectsize.i32.p0(ptr null, i1 true, i1 true, i1 false)
ret i32 %1
}
; 1 is an arbitrary non-zero address space.
define i32 @test24() {
; CHECK-LABEL: @test24(
; CHECK-NEXT: [[TMP1:%.*]] = call i32 @llvm.objectsize.i32.p1(ptr addrspace(1) null, i1 false, i1 false, i1 false)
; CHECK-NEXT: ret i32 [[TMP1]]
;
%1 = call i32 @llvm.objectsize.i32.p1(ptr addrspace(1) null, i1 false,
i1 false, i1 false)
ret i32 %1
}
define i32 @test25() {
; CHECK-LABEL: @test25(
; CHECK-NEXT: [[TMP1:%.*]] = call i32 @llvm.objectsize.i32.p1(ptr addrspace(1) null, i1 true, i1 false, i1 false)
; CHECK-NEXT: ret i32 [[TMP1]]
;
%1 = call i32 @llvm.objectsize.i32.p1(ptr addrspace(1) null, i1 true,
i1 false, i1 false)
ret i32 %1
}
define i32 @test26() {
; CHECK-LABEL: @test26(
; CHECK-NEXT: [[TMP1:%.*]] = call i32 @llvm.objectsize.i32.p1(ptr addrspace(1) null, i1 false, i1 true, i1 false)
; CHECK-NEXT: ret i32 [[TMP1]]
;
%1 = call i32 @llvm.objectsize.i32.p1(ptr addrspace(1) null, i1 false,
i1 true, i1 false)
ret i32 %1
}
define i32 @test27() {
; CHECK-LABEL: @test27(
; CHECK-NEXT: [[TMP1:%.*]] = call i32 @llvm.objectsize.i32.p1(ptr addrspace(1) null, i1 true, i1 true, i1 false)
; CHECK-NEXT: ret i32 [[TMP1]]
;
%1 = call i32 @llvm.objectsize.i32.p1(ptr addrspace(1) null, i1 true,
i1 true, i1 false)
ret i32 %1
}
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