1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
|
; RUN: llc < %s -mcpu=pwr8 | FileCheck %s
; Generated from following C code:
;
; void foo (int result, char *addr) {
; __asm__ __volatile__ (
; "ld%U1%X1 %0,%1\n"
; "cmpw %0,%0\n"
; "bne- 1f\n"
; "1: isync\n"
; : "=r" (result)
; : "m"(*addr) : "memory", "cr0");
; }
target datalayout = "e-m:e-i64:64-n32:64"
target triple = "powerpc64le-unknown-linux-gnu"
; Function Attrs: nounwind
; Check that we accept 'U' and 'X' constraints.
define void @foo(i32 signext %result, i8* %addr) #0 {
entry:
%result.addr = alloca i32, align 4
%addr.addr = alloca i8*, align 8
store i32 %result, i32* %result.addr, align 4
store i8* %addr, i8** %addr.addr, align 8
%0 = load i8** %addr.addr, align 8
%1 = call i32 asm sideeffect "ld${1:U}${1:X} $0,$1\0Acmpw $0,$0\0Abne- 1f\0A1: isync\0A", "=r,*m,~{memory},~{cr0}"(i8* %0) #1, !srcloc !1
store i32 %1, i32* %result.addr, align 4
ret void
}
; CHECK-LABEL: @foo
; CHECK: ld [[REG:[0-9]+]],0(4)
; CHECK-NEXT: cmpw [[REG]],[[REG]]
; CHECK-NEXT: bne- 1f
; CHECK-NEXT: 1: isync
attributes #0 = { nounwind "less-precise-fpmad"="false" "no-frame-pointer-elim"="true" "no-frame-pointer-elim-non-leaf" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" }
attributes #1 = { nounwind }
!llvm.ident = !{!0}
!0 = metadata !{metadata !"clang version 3.6.0 (trunk 217557)"}
!1 = metadata !{i32 67, i32 91, i32 110, i32 126}
|
