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TheRock/compiler/amd-llvm/llvm/test/Transforms/GVN/pr12979.ll
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Flatten subprojects into a single base monorepo
2026-09-02 16:34:47 -07:00

109 lines
3.0 KiB
LLVM

; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 6
; RUN: opt -passes=gvn -S < %s | FileCheck %s
define i32 @test1(i32 %x, i32 %y) {
; CHECK-LABEL: define i32 @test1(
; CHECK-SAME: i32 [[X:%.*]], i32 [[Y:%.*]]) {
; CHECK-NEXT: [[ADD1:%.*]] = add i32 [[X]], [[Y]]
; CHECK-NEXT: [[FOO:%.*]] = add i32 [[ADD1]], [[ADD1]]
; CHECK-NEXT: ret i32 [[FOO]]
;
%add1 = add nsw i32 %x, %y
%add2 = add i32 %x, %y
%foo = add i32 %add1, %add2
ret i32 %foo
}
define i32 @test2(i32 %x, i32 %y) {
; CHECK-LABEL: define i32 @test2(
; CHECK-SAME: i32 [[X:%.*]], i32 [[Y:%.*]]) {
; CHECK-NEXT: [[ADD1:%.*]] = add i32 [[X]], [[Y]]
; CHECK-NEXT: [[FOO:%.*]] = add i32 [[ADD1]], [[ADD1]]
; CHECK-NEXT: ret i32 [[FOO]]
;
%add1 = add nuw i32 %x, %y
%add2 = add i32 %x, %y
%foo = add i32 %add1, %add2
ret i32 %foo
}
define i32 @test3(i32 %x, i32 %y) {
; CHECK-LABEL: define i32 @test3(
; CHECK-SAME: i32 [[X:%.*]], i32 [[Y:%.*]]) {
; CHECK-NEXT: [[ADD1:%.*]] = add i32 [[X]], [[Y]]
; CHECK-NEXT: [[FOO:%.*]] = add i32 [[ADD1]], [[ADD1]]
; CHECK-NEXT: ret i32 [[FOO]]
;
%add1 = add nuw nsw i32 %x, %y
%add2 = add i32 %x, %y
%foo = add i32 %add1, %add2
ret i32 %foo
}
define i32 @test4(i32 %x, i32 %y) {
; CHECK-LABEL: define i32 @test4(
; CHECK-SAME: i32 [[X:%.*]], i32 [[Y:%.*]]) {
; CHECK-NEXT: [[ADD1:%.*]] = add nsw i32 [[X]], [[Y]]
; CHECK-NEXT: [[FOO:%.*]] = add i32 [[ADD1]], [[ADD1]]
; CHECK-NEXT: ret i32 [[FOO]]
;
%add1 = add nsw i32 %x, %y
%add2 = add nsw i32 %x, %y
%foo = add i32 %add1, %add2
ret i32 %foo
}
define i32 @test5(i32 %x, i32 %y) {
; CHECK-LABEL: define i32 @test5(
; CHECK-SAME: i32 [[X:%.*]], i32 [[Y:%.*]]) {
; CHECK-NEXT: [[ADD1:%.*]] = add i32 [[X]], [[Y]]
; CHECK-NEXT: [[FOO:%.*]] = add i32 [[ADD1]], [[ADD1]]
; CHECK-NEXT: ret i32 [[FOO]]
;
%add1 = add nuw i32 %x, %y
%add2 = add nsw i32 %x, %y
%foo = add i32 %add1, %add2
ret i32 %foo
}
define i32 @test6(i32 %x, i32 %y) {
; CHECK-LABEL: define i32 @test6(
; CHECK-SAME: i32 [[X:%.*]], i32 [[Y:%.*]]) {
; CHECK-NEXT: [[ADD1:%.*]] = add nsw i32 [[X]], [[Y]]
; CHECK-NEXT: [[FOO:%.*]] = add i32 [[ADD1]], [[ADD1]]
; CHECK-NEXT: ret i32 [[FOO]]
;
%add1 = add nuw nsw i32 %x, %y
%add2 = add nsw i32 %x, %y
%foo = add i32 %add1, %add2
ret i32 %foo
}
define i32 @test7(i32 %x, i32 %y) {
; CHECK-LABEL: define i32 @test7(
; CHECK-SAME: i32 [[X:%.*]], i32 [[Y:%.*]]) {
; CHECK-NEXT: [[ADD1:%.*]] = add i32 [[X]], [[Y]]
; CHECK-NEXT: [[FOO:%.*]] = add i32 [[ADD1]], [[ADD1]]
; CHECK-NEXT: ret i32 [[FOO]]
;
%add1 = add i32 %x, %y, !what_is_this !{}
%add2 = add i32 %x, %y
%foo = add i32 %add1, %add2
ret i32 %foo
}
declare void @mumble(i2, i2)
define void @test8(i2 %x) {
; CHECK-LABEL: define void @test8(
; CHECK-SAME: i2 [[X:%.*]]) {
; CHECK-NEXT: [[ASHR0:%.*]] = ashr i2 [[X]], 1
; CHECK-NEXT: call void @mumble(i2 [[ASHR0]], i2 [[ASHR0]])
; CHECK-NEXT: ret void
;
%ashr0 = ashr exact i2 %x, 1
%ashr1 = ashr i2 %x, 1
call void @mumble(i2 %ashr0, i2 %ashr1)
ret void
}