diff options
Diffstat (limited to 'llvm/test')
| -rw-r--r-- | llvm/test/CodeGen/X86/atomic-eflags-reuse.ll | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/llvm/test/CodeGen/X86/atomic-eflags-reuse.ll b/llvm/test/CodeGen/X86/atomic-eflags-reuse.ll index dc1814b55cd..80215639ae5 100644 --- a/llvm/test/CodeGen/X86/atomic-eflags-reuse.ll +++ b/llvm/test/CodeGen/X86/atomic-eflags-reuse.ll @@ -176,4 +176,45 @@ entry: ret i8 %tmp2 } +define i8 @test_sub_1_setcc_eq(i64* %p) #0 { +; CHECK-LABEL: test_sub_1_setcc_eq: +; CHECK: # BB#0: # %entry +; CHECK-NEXT: lock decq (%rdi) +; CHECK-NEXT: sete %al +; CHECK-NEXT: retq +entry: + %tmp0 = atomicrmw sub i64* %p, i64 1 seq_cst + %tmp1 = icmp eq i64 %tmp0, 1 + %tmp2 = zext i1 %tmp1 to i8 + ret i8 %tmp2 +} + +define i8 @test_add_5_setcc_ne(i64* %p) #0 { +; CHECK-LABEL: test_add_5_setcc_ne: +; CHECK: # BB#0: # %entry +; CHECK-NEXT: lock addq $5, (%rdi) +; CHECK-NEXT: setne %al +; CHECK-NEXT: retq +entry: + %tmp0 = atomicrmw add i64* %p, i64 5 seq_cst + %tmp1 = icmp ne i64 %tmp0, -5 + %tmp2 = zext i1 %tmp1 to i8 + ret i8 %tmp2 +} + +define i8 @test_add_5_setcc_ne_comparand_mismatch(i64* %p) #0 { +; CHECK-LABEL: test_add_5_setcc_ne_comparand_mismatch: +; CHECK: # BB#0: # %entry +; CHECK-NEXT: movl $5, %eax +; CHECK-NEXT: lock xaddq %rax, (%rdi) +; CHECK-NEXT: testq %rax, %rax +; CHECK-NEXT: setne %al +; CHECK-NEXT: retq +entry: + %tmp0 = atomicrmw add i64* %p, i64 5 seq_cst + %tmp1 = icmp ne i64 %tmp0, 0 + %tmp2 = zext i1 %tmp1 to i8 + ret i8 %tmp2 +} + attributes #0 = { nounwind } |
