192 lines
6.0 KiB
LLVM
192 lines
6.0 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt < %s -passes=instcombine -S | FileCheck %s
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declare void @use(i32)
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define i32 @testAdd(i32 %X, i32 %Y) {
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; CHECK-LABEL: @testAdd(
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; CHECK-NEXT: [[T:%.*]] = add i32 [[X:%.*]], [[Y:%.*]]
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; CHECK-NEXT: ret i32 [[T]]
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;
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%t = add i32 %X, %Y
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%tl = bitcast i32 %t to i32
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ret i32 %tl
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}
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define i32 @and_sext_to_sel(i32 %x, i1 %y) {
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; CHECK-LABEL: @and_sext_to_sel(
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; CHECK-NEXT: [[R:%.*]] = select i1 [[Y:%.*]], i32 [[X:%.*]], i32 0
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; CHECK-NEXT: ret i32 [[R]]
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;
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%sext = sext i1 %y to i32
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%r = and i32 %sext, %x
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ret i32 %r
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}
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define <2 x i32> @and_sext_to_sel_constant_vec(<2 x i1> %y) {
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; CHECK-LABEL: @and_sext_to_sel_constant_vec(
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; CHECK-NEXT: [[R:%.*]] = select <2 x i1> [[Y:%.*]], <2 x i32> <i32 42, i32 -7>, <2 x i32> zeroinitializer
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; CHECK-NEXT: ret <2 x i32> [[R]]
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;
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%sext = sext <2 x i1> %y to <2 x i32>
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%r = and <2 x i32> <i32 42, i32 -7>, %sext
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ret <2 x i32> %r
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}
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define <2 x i32> @and_sext_to_sel_swap(<2 x i32> %px, <2 x i1> %y) {
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; CHECK-LABEL: @and_sext_to_sel_swap(
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; CHECK-NEXT: [[X:%.*]] = mul <2 x i32> [[PX:%.*]], [[PX]]
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; CHECK-NEXT: [[R:%.*]] = select <2 x i1> [[Y:%.*]], <2 x i32> [[X]], <2 x i32> zeroinitializer
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; CHECK-NEXT: ret <2 x i32> [[R]]
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;
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%x = mul <2 x i32> %px, %px ; thwart complexity-based canonicalization
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%sext = sext <2 x i1> %y to <2 x i32>
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%r = and <2 x i32> %x, %sext
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ret <2 x i32> %r
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}
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define i32 @and_sext_to_sel_multi_use(i32 %x, i1 %y) {
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; CHECK-LABEL: @and_sext_to_sel_multi_use(
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; CHECK-NEXT: [[SEXT:%.*]] = sext i1 [[Y:%.*]] to i32
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; CHECK-NEXT: call void @use(i32 [[SEXT]])
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; CHECK-NEXT: [[R:%.*]] = and i32 [[SEXT]], [[X:%.*]]
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; CHECK-NEXT: ret i32 [[R]]
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;
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%sext = sext i1 %y to i32
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call void @use(i32 %sext)
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%r = and i32 %sext, %x
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ret i32 %r
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}
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define i32 @and_sext_to_sel_multi_use_constant_mask(i1 %y) {
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; CHECK-LABEL: @and_sext_to_sel_multi_use_constant_mask(
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; CHECK-NEXT: [[SEXT:%.*]] = sext i1 [[Y:%.*]] to i32
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; CHECK-NEXT: call void @use(i32 [[SEXT]])
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; CHECK-NEXT: [[R:%.*]] = select i1 [[Y]], i32 42, i32 0
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; CHECK-NEXT: ret i32 [[R]]
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;
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%sext = sext i1 %y to i32
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call void @use(i32 %sext)
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%r = and i32 %sext, 42
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ret i32 %r
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}
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define i32 @or_sext_to_sel(i32 %x, i1 %y) {
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; CHECK-LABEL: @or_sext_to_sel(
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; CHECK-NEXT: [[R:%.*]] = select i1 [[Y:%.*]], i32 -1, i32 [[X:%.*]]
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; CHECK-NEXT: ret i32 [[R]]
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;
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%sext = sext i1 %y to i32
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%r = or i32 %sext, %x
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ret i32 %r
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}
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define <2 x i32> @or_sext_to_sel_constant_vec(<2 x i1> %y) {
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; CHECK-LABEL: @or_sext_to_sel_constant_vec(
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; CHECK-NEXT: [[R:%.*]] = select <2 x i1> [[Y:%.*]], <2 x i32> <i32 -1, i32 -1>, <2 x i32> <i32 42, i32 -7>
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; CHECK-NEXT: ret <2 x i32> [[R]]
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;
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%sext = sext <2 x i1> %y to <2 x i32>
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%r = or <2 x i32> <i32 42, i32 -7>, %sext
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ret <2 x i32> %r
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}
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define <2 x i32> @or_sext_to_sel_swap(<2 x i32> %px, <2 x i1> %y) {
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; CHECK-LABEL: @or_sext_to_sel_swap(
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; CHECK-NEXT: [[X:%.*]] = mul <2 x i32> [[PX:%.*]], [[PX]]
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; CHECK-NEXT: [[R:%.*]] = select <2 x i1> [[Y:%.*]], <2 x i32> <i32 -1, i32 -1>, <2 x i32> [[X]]
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; CHECK-NEXT: ret <2 x i32> [[R]]
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;
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%x = mul <2 x i32> %px, %px ; thwart complexity-based canonicalization
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%sext = sext <2 x i1> %y to <2 x i32>
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%r = or <2 x i32> %x, %sext
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ret <2 x i32> %r
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}
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define i32 @or_sext_to_sel_multi_use(i32 %x, i1 %y) {
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; CHECK-LABEL: @or_sext_to_sel_multi_use(
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; CHECK-NEXT: [[SEXT:%.*]] = sext i1 [[Y:%.*]] to i32
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; CHECK-NEXT: call void @use(i32 [[SEXT]])
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; CHECK-NEXT: [[R:%.*]] = or i32 [[SEXT]], [[X:%.*]]
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; CHECK-NEXT: ret i32 [[R]]
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;
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%sext = sext i1 %y to i32
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call void @use(i32 %sext)
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%r = or i32 %sext, %x
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ret i32 %r
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}
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define i32 @or_sext_to_sel_multi_use_constant_mask(i1 %y) {
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; CHECK-LABEL: @or_sext_to_sel_multi_use_constant_mask(
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; CHECK-NEXT: [[SEXT:%.*]] = sext i1 [[Y:%.*]] to i32
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; CHECK-NEXT: call void @use(i32 [[SEXT]])
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; CHECK-NEXT: [[R:%.*]] = select i1 [[Y]], i32 -1, i32 42
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; CHECK-NEXT: ret i32 [[R]]
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;
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%sext = sext i1 %y to i32
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call void @use(i32 %sext)
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%r = or i32 %sext, 42
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ret i32 %r
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}
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define i32 @xor_sext_to_sel(i32 %x, i1 %y) {
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; CHECK-LABEL: @xor_sext_to_sel(
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; CHECK-NEXT: [[SEXT:%.*]] = sext i1 [[Y:%.*]] to i32
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; CHECK-NEXT: [[R:%.*]] = xor i32 [[SEXT]], [[X:%.*]]
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; CHECK-NEXT: ret i32 [[R]]
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;
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%sext = sext i1 %y to i32
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%r = xor i32 %sext, %x
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ret i32 %r
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}
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define <2 x i32> @xor_sext_to_sel_constant_vec(<2 x i1> %y) {
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; CHECK-LABEL: @xor_sext_to_sel_constant_vec(
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; CHECK-NEXT: [[SEXT:%.*]] = sext <2 x i1> [[Y:%.*]] to <2 x i32>
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; CHECK-NEXT: [[R:%.*]] = xor <2 x i32> [[SEXT]], <i32 42, i32 -7>
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; CHECK-NEXT: ret <2 x i32> [[R]]
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;
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%sext = sext <2 x i1> %y to <2 x i32>
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%r = xor <2 x i32> <i32 42, i32 -7>, %sext
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ret <2 x i32> %r
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}
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define <2 x i32> @xor_sext_to_sel_swap(<2 x i32> %px, <2 x i1> %y) {
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; CHECK-LABEL: @xor_sext_to_sel_swap(
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; CHECK-NEXT: [[X:%.*]] = mul <2 x i32> [[PX:%.*]], [[PX]]
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; CHECK-NEXT: [[SEXT:%.*]] = sext <2 x i1> [[Y:%.*]] to <2 x i32>
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; CHECK-NEXT: [[R:%.*]] = xor <2 x i32> [[X]], [[SEXT]]
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; CHECK-NEXT: ret <2 x i32> [[R]]
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;
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%x = mul <2 x i32> %px, %px ; thwart complexity-based canonicalization
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%sext = sext <2 x i1> %y to <2 x i32>
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%r = xor <2 x i32> %x, %sext
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ret <2 x i32> %r
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}
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define i32 @xor_sext_to_sel_multi_use(i32 %x, i1 %y) {
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; CHECK-LABEL: @xor_sext_to_sel_multi_use(
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; CHECK-NEXT: [[SEXT:%.*]] = sext i1 [[Y:%.*]] to i32
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; CHECK-NEXT: call void @use(i32 [[SEXT]])
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; CHECK-NEXT: [[R:%.*]] = xor i32 [[SEXT]], [[X:%.*]]
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; CHECK-NEXT: ret i32 [[R]]
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;
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%sext = sext i1 %y to i32
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call void @use(i32 %sext)
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%r = xor i32 %sext, %x
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ret i32 %r
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}
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define i32 @xor_sext_to_sel_multi_use_constant_mask(i1 %y) {
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; CHECK-LABEL: @xor_sext_to_sel_multi_use_constant_mask(
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; CHECK-NEXT: [[SEXT:%.*]] = sext i1 [[Y:%.*]] to i32
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; CHECK-NEXT: call void @use(i32 [[SEXT]])
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; CHECK-NEXT: [[R:%.*]] = xor i32 [[SEXT]], 42
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; CHECK-NEXT: ret i32 [[R]]
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;
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%sext = sext i1 %y to i32
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call void @use(i32 %sext)
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%r = xor i32 %sext, 42
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ret i32 %r
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}
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