File: inline-asm-stack-realign3.ll

package info (click to toggle)
llvm-toolchain-20 1%3A20.1.6-1~exp1
  • links: PTS, VCS
  • area: main
  • in suites: experimental
  • size: 2,111,304 kB
  • sloc: cpp: 7,438,677; ansic: 1,393,822; asm: 1,012,926; python: 241,650; f90: 86,635; objc: 75,479; lisp: 42,144; pascal: 17,286; sh: 10,027; ml: 5,082; perl: 4,730; awk: 3,523; makefile: 3,349; javascript: 2,251; xml: 892; fortran: 672
file content (29 lines) | stat: -rw-r--r-- 655 bytes parent folder | download | duplicates (15) 
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
 
; RUN: llc -mtriple=i686-- -no-integrated-as < %s | FileCheck %s

declare void @bar(ptr %junk)

define i32 @foo(i1 %cond) {
entry:
  %r = alloca i32, align 128
  store i32 -1, ptr %r, align 128
  br i1 %cond, label %doit, label %skip

doit:
  call void asm sideeffect "xor %ecx, %ecx\0A\09mov %ecx, $0", "=*m,~{ecx},~{flags}"(ptr elementtype(i32) %r)
  %junk = alloca i32
  call void @bar(ptr %junk)
  br label %skip

skip:
  %0 = load i32, ptr %r, align 128
  ret i32 %0
}

; CHECK-LABEL: foo:
; CHECK: pushl %ebp
; CHECK: andl $-128, %esp
; CHECK: xor %ecx, %ecx
; CHECK-NEXT: mov %ecx, (%esi)
; CHECK: movl (%esi), %eax
; CHECK: popl %ebp
; CHECK: ret