diff options
| -rw-r--r-- | llvm/test/CodeGen/X86/xchg-nofold.ll | 24 |
1 files changed, 23 insertions, 1 deletions
diff --git a/llvm/test/CodeGen/X86/xchg-nofold.ll b/llvm/test/CodeGen/X86/xchg-nofold.ll index fddc7906e08..939fa040422 100644 --- a/llvm/test/CodeGen/X86/xchg-nofold.ll +++ b/llvm/test/CodeGen/X86/xchg-nofold.ll @@ -1,3 +1,4 @@ +; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py ; RUN: llc -mtriple=x86_64-linux-gnu < %s | FileCheck %s %"struct.std::atomic" = type { %"struct.std::atomic_bool" } @@ -6,6 +7,28 @@ ; CHECK-LABEL: _Z3fooRSt6atomicIbEb define zeroext i1 @_Z3fooRSt6atomicIbEb(%"struct.std::atomic"* nocapture dereferenceable(1) %a, i1 returned zeroext %b) nounwind { +; CHECK-LABEL: _Z3fooRSt6atomicIbEb: +; CHECK: # BB#0: # %entry +; CHECK-NEXT: movq %rdi, %rax +; CHECK-NEXT: shrq $3, %rax +; CHECK-NEXT: movb 2147450880(%rax), %al +; CHECK-NEXT: testb %al, %al +; CHECK-NEXT: je .LBB0_3 +; CHECK-NEXT: # BB#1: +; CHECK-NEXT: movl %edi, %ecx +; CHECK-NEXT: andl $7, %ecx +; CHECK-NEXT: cmpb %al, %cl +; CHECK-NEXT: jge .LBB0_2 +; CHECK-NEXT: .LBB0_3: +; CHECK-NEXT: movl %esi, %eax +; CHECK-NEXT: xchgb %al, (%rdi) +; CHECK-NEXT: movl %esi, %eax +; CHECK-NEXT: retq +; CHECK-NEXT: .LBB0_2: +; CHECK-NEXT: pushq %rax +; CHECK-NEXT: callq __asan_report_store1 +; CHECK-NEXT: #APP +; CHECK-NEXT: #NO_APP entry: %frombool.i.i = zext i1 %b to i8 %_M_i.i.i = getelementptr inbounds %"struct.std::atomic", %"struct.std::atomic"* %a, i64 0, i32 0, i32 0, i32 0 @@ -30,7 +53,6 @@ entry: ; <label>:11: ; preds = %6, %entry store atomic i8 %frombool.i.i, i8* %_M_i.i.i seq_cst, align 1 -; CHECK: xchgb %{{.*}}, (%{{.*}}) ret i1 %b } |
