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llvm-project/llvm/test/CodeGen/X86/pr37826.ll

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[DAG] Add testcase. llvm-svn: 337414
2018-07-19 02:34:52 +08:00
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc -o - %s -mtriple=x86_64--unknown-linux-gnu | FileCheck %s
; When compiled and run this should print zero.
[X86][test] Add explicit dso_local to definitions in ELF static relocation model tests TargetMachine::shouldAssumeDSOLocal currently implies dso_local for such definitions. Adding explicit dso_local makes these tests align with the clang -fno-pic behavior and allow the removal of the TargetMachine::shouldAssumeDSOLocal special case.
2020-12-31 06:40:50 +08:00
@c = common dso_local local_unnamed_addr global i32 0, align 4
@f = common dso_local local_unnamed_addr global i32 0, align 4
@e = common dso_local local_unnamed_addr global i32 0, align 4
[DAG] Add testcase. llvm-svn: 337414
2018-07-19 02:34:52 +08:00
@.str.1 = private unnamed_addr constant [4 x i8] c"%d\0A\00", align 1
[DAG] Fix Memory ordering check in ReduceLoadOpStore. When merging through a TokenFactor we need to check that the load may be ordered such that no other aliasing memory operations may happen. It is not sufficient to just check that the load is a member of the chain token factor as it there may be a indirect chain. Require the load's chain has only one use. This fixes PR37826. Reviewers: spatel, davide, efriedma, craig.topper, RKSimon Subscribers: hiraditya, llvm-commits Differential Revision: https://reviews.llvm.org/D49388 llvm-svn: 337560
2018-07-20 23:20:50 +08:00
; We should only see a single store to f (a bytes store to f+3).
[X86][test] Add explicit dso_local to definitions in ELF static relocation model tests TargetMachine::shouldAssumeDSOLocal currently implies dso_local for such definitions. Adding explicit dso_local makes these tests align with the clang -fno-pic behavior and allow the removal of the TargetMachine::shouldAssumeDSOLocal special case.
2020-12-31 06:40:50 +08:00
define dso_local void @k(i32 %l) {
[DAG] Add testcase. llvm-svn: 337414
2018-07-19 02:34:52 +08:00
; CHECK-LABEL: k:
; CHECK: # %bb.0:
; CHECK-NEXT: movl {{.*}}(%rip), %eax
[DAG] Fix Memory ordering check in ReduceLoadOpStore. When merging through a TokenFactor we need to check that the load may be ordered such that no other aliasing memory operations may happen. It is not sufficient to just check that the load is a member of the chain token factor as it there may be a indirect chain. Require the load's chain has only one use. This fixes PR37826. Reviewers: spatel, davide, efriedma, craig.topper, RKSimon Subscribers: hiraditya, llvm-commits Differential Revision: https://reviews.llvm.org/D49388 llvm-svn: 337560
2018-07-20 23:20:50 +08:00
; CHECK-NEXT: orl {{.*}}(%rip), %eax
[DAG] Add testcase. llvm-svn: 337414
2018-07-19 02:34:52 +08:00
; CHECK-NEXT: shrl $24, %eax
; CHECK-NEXT: movb %al, f+{{.*}}(%rip)
; CHECK-NEXT: retq
%load = load i32, i32* @c, align 4
%load6 = load i32, i32* @f, align 4
%clear7 = and i32 %load6, 16777215
store i32 %clear7, i32* @c, align 4
%neg = and i32 %load6, 2097151
%value = xor i32 %neg, 2097151
store i32 %load, i32* @c, align 4
%t0 = load i32, i32* @e, align 4
%value15 = xor i32 %t0, %value
%clear16 = and i32 %load6, -16777216
%set17 = or i32 %value15, %clear16
store i32 %set17, i32* @f, align 4
%clear25 = and i32 %set17, -16777216
%set26 = or i32 %clear25, %clear7
store i32 %set26, i32* @f, align 4
ret void
}
declare i32 @printf(i8* nocapture readonly, ...)
[X86][test] Add explicit dso_local to definitions in ELF static relocation model tests TargetMachine::shouldAssumeDSOLocal currently implies dso_local for such definitions. Adding explicit dso_local makes these tests align with the clang -fno-pic behavior and allow the removal of the TargetMachine::shouldAssumeDSOLocal special case.
2020-12-31 06:40:50 +08:00
define dso_local i32 @main() {
[DAG] Add testcase. llvm-svn: 337414
2018-07-19 02:34:52 +08:00
; CHECK-LABEL: main:
; CHECK: # %bb.0:
; CHECK-NEXT: pushq %rax
; CHECK-NEXT: .cfi_def_cfa_offset 16
; CHECK-NEXT: movl $1, %edi
; CHECK-NEXT: callq k
; CHECK-NEXT: movl {{.*}}(%rip), %esi
; CHECK-NEXT: movl $.L.str.1, %edi
; CHECK-NEXT: xorl %eax, %eax
; CHECK-NEXT: callq printf
; CHECK-NEXT: xorl %eax, %eax
; CHECK-NEXT: popq %rcx
; CHECK-NEXT: .cfi_def_cfa_offset 8
; CHECK-NEXT: retq
tail call void @k(i32 1)
%load = load i32, i32* @f, align 4
%call = tail call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.1, i64 0, i64 0), i32 %load)
ret i32 0
}