forked from OSchip/llvm-project
27 lines
828 B
LLVM
27 lines
828 B
LLVM
; RUN: llc -verify-machineinstrs -mtriple=armebv8-linux-gnueabi -O0 %s -o - | FileCheck %s
|
|
|
|
@x = global i64 10, align 8
|
|
@y = global i64 20, align 8
|
|
@z = global i64 20, align 8
|
|
|
|
; CHECK_LABEL: main:
|
|
; CHECK: ldr [[R2:r[0-9]+]], {{\[}}[[R1:r[0-9]+]]{{\]}}
|
|
; CHECK-NEXT: ldr [[R1]], {{\[}}[[R1]], #4]
|
|
; CHECK: mov [[R4:r[0-9]+]], [[R2]]
|
|
; CHECK-NEXT: mov [[R5:r[0-9]+]], [[R1]]
|
|
; CHECK: ldr [[R2]], {{\[}}[[R1]]{{\]}}
|
|
; CHECK-NEXT: ldr [[R1]], {{\[}}[[R1]], #4]
|
|
; CHECK: mov [[R6:r[0-9]+]], [[R2]]
|
|
; CHECK-NEXT: mov [[R7:r[0-9]+]], [[R1]]
|
|
|
|
define arm_aapcs_vfpcc i32 @main() #0 {
|
|
entry:
|
|
%retval = alloca i32, align 4
|
|
store i32 0, i32* %retval, align 4
|
|
%0 = load i64, i64* @z, align 8
|
|
%1 = load i64, i64* @x, align 8
|
|
%2 = cmpxchg i64* @y, i64 %0, i64 %1 seq_cst seq_cst
|
|
%3 = extractvalue { i64, i1 } %2, 1
|
|
ret i32 0
|
|
}
|