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

81 lines
3.2 KiB
LLVM

; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 6
; RUN: opt < %s -passes=gvn -S | FileCheck %s
target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64"
target triple = "x86_64-apple-macosx10.7.0"
; rdar://12801584
; Value of %shouldExit can be changed by RunInMode.
; Make sure we do not replace load %shouldExit in while.cond.backedge
; with a phi node where the value from while.body is 0.
define i32 @test() nounwind ssp {
; CHECK-LABEL: define i32 @test(
; CHECK-SAME: ) #[[ATTR0:[0-9]+]] {
; CHECK-NEXT: [[ENTRY:.*:]]
; CHECK-NEXT: [[SHOULDEXIT:%.*]] = alloca i32, align 4
; CHECK-NEXT: [[TASKSIDLE:%.*]] = alloca i32, align 4
; CHECK-NEXT: store i32 0, ptr [[SHOULDEXIT]], align 4
; CHECK-NEXT: store i32 0, ptr [[TASKSIDLE]], align 4
; CHECK-NEXT: call void @CTestInitialize(ptr [[TASKSIDLE]]) #[[ATTR1:[0-9]+]]
; CHECK-NEXT: br i1 true, label %[[WHILE_BODY_LR_PH:.*]], label %[[ENTRY_WHILE_END_CRIT_EDGE:.*]]
; CHECK: [[ENTRY_WHILE_END_CRIT_EDGE]]:
; CHECK-NEXT: br label %[[WHILE_END:.*]]
; CHECK: [[WHILE_BODY_LR_PH]]:
; CHECK-NEXT: br label %[[WHILE_BODY:.*]]
; CHECK: [[WHILE_BODY]]:
; CHECK-NEXT: call void @RunInMode(i32 100) #[[ATTR1]]
; CHECK-NEXT: [[TMP0:%.*]] = load i32, ptr [[TASKSIDLE]], align 4
; CHECK-NEXT: [[TOBOOL:%.*]] = icmp eq i32 [[TMP0]], 0
; CHECK-NEXT: br i1 [[TOBOOL]], label %[[WHILE_COND_BACKEDGE:.*]], label %[[IF_THEN:.*]]
; CHECK: [[IF_THEN]]:
; CHECK-NEXT: store i32 0, ptr [[TASKSIDLE]], align 4
; CHECK-NEXT: call void @TimerCreate(ptr [[SHOULDEXIT]]) #[[ATTR1]]
; CHECK-NEXT: br label %[[WHILE_COND_BACKEDGE]]
; CHECK: [[WHILE_COND_BACKEDGE]]:
; CHECK-NEXT: [[TMP1:%.*]] = load i32, ptr [[SHOULDEXIT]], align 4
; CHECK-NEXT: [[CMP:%.*]] = icmp eq i32 [[TMP1]], 0
; CHECK-NEXT: br i1 [[CMP]], label %[[WHILE_BODY]], label %[[WHILE_COND_WHILE_END_CRIT_EDGE:.*]]
; CHECK: [[WHILE_COND_WHILE_END_CRIT_EDGE]]:
; CHECK-NEXT: br label %[[WHILE_END]]
; CHECK: [[WHILE_END]]:
; CHECK-NEXT: ret i32 0
;
entry:
%shouldExit = alloca i32, align 4
%tasksIdle = alloca i32, align 4
store i32 0, ptr %shouldExit, align 4
store i32 0, ptr %tasksIdle, align 4
call void @CTestInitialize(ptr %tasksIdle) nounwind
%0 = load i32, ptr %shouldExit, align 4
%cmp1 = icmp eq i32 %0, 0
br i1 %cmp1, label %while.body.lr.ph, label %while.end
while.body.lr.ph:
br label %while.body
while.body:
call void @RunInMode(i32 100) nounwind
%1 = load i32, ptr %tasksIdle, align 4
%tobool = icmp eq i32 %1, 0
br i1 %tobool, label %while.cond.backedge, label %if.then
if.then:
store i32 0, ptr %tasksIdle, align 4
call void @TimerCreate(ptr %shouldExit) nounwind
br label %while.cond.backedge
while.cond.backedge:
%2 = load i32, ptr %shouldExit, align 4
%cmp = icmp eq i32 %2, 0
br i1 %cmp, label %while.body, label %while.cond.while.end_crit_edge
while.cond.while.end_crit_edge:
br label %while.end
while.end:
ret i32 0
}
declare void @CTestInitialize(ptr)
declare void @RunInMode(i32)
declare void @TimerCreate(ptr)