2017-05-31 17:44:08 +08:00
|
|
|
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
|
2017-05-30 00:25:20 +08:00
|
|
|
; RUN: llc -mtriple=x86_64-linux-gnu < %s | FileCheck %s
|
|
|
|
|
|
|
|
|
|
%"struct.std::atomic" = type { %"struct.std::atomic_bool" }
|
|
|
|
|
%"struct.std::atomic_bool" = type { %"struct.std::__atomic_base" }
|
|
|
|
|
%"struct.std::__atomic_base" = type { i8 }
|
|
|
|
|
|
|
|
|
|
; CHECK-LABEL: _Z3fooRSt6atomicIbEb
|
|
|
|
|
define zeroext i1 @_Z3fooRSt6atomicIbEb(%"struct.std::atomic"* nocapture dereferenceable(1) %a, i1 returned zeroext %b) nounwind {
|
2017-05-31 17:44:08 +08:00
|
|
|
; 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
|
2017-05-30 00:25:20 +08:00
|
|
|
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
|
|
|
|
|
%0 = ptrtoint i8* %_M_i.i.i to i64
|
|
|
|
|
%1 = lshr i64 %0, 3
|
|
|
|
|
%2 = add i64 %1, 2147450880
|
|
|
|
|
%3 = inttoptr i64 %2 to i8*
|
|
|
|
|
%4 = load i8, i8* %3
|
|
|
|
|
%5 = icmp ne i8 %4, 0
|
|
|
|
|
br i1 %5, label %6, label %11
|
|
|
|
|
|
|
|
|
|
; <label>:6: ; preds = %entry
|
|
|
|
|
%7 = and i64 %0, 7
|
|
|
|
|
%8 = trunc i64 %7 to i8
|
|
|
|
|
%9 = icmp sge i8 %8, %4
|
|
|
|
|
br i1 %9, label %10, label %11
|
|
|
|
|
|
|
|
|
|
; <label>:10: ; preds = %6
|
|
|
|
|
call void @__asan_report_store1(i64 %0)
|
|
|
|
|
call void asm sideeffect "", ""()
|
|
|
|
|
unreachable
|
|
|
|
|
|
|
|
|
|
; <label>:11: ; preds = %6, %entry
|
|
|
|
|
store atomic i8 %frombool.i.i, i8* %_M_i.i.i seq_cst, align 1
|
|
|
|
|
ret i1 %b
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
declare void @__asan_report_store1(i64)
|
