File: inline-asm-sp-clobber-memcpy.ll

package info (click to toggle)
llvm-toolchain-21 1%3A21.1.7-1
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid
  • size: 2,245,064 kB
  • sloc: cpp: 7,619,731; ansic: 1,434,018; asm: 1,058,748; python: 252,740; f90: 94,671; objc: 70,685; lisp: 42,813; pascal: 18,401; sh: 8,601; ml: 5,111; perl: 4,720; makefile: 3,676; awk: 3,523; javascript: 2,409; xml: 892; fortran: 770
file content (17 lines) | stat: -rw-r--r-- 611 bytes parent folder | download | duplicates (17)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
; RUN: llc < %s -stackrealign -mtriple i386-apple-darwin -mcpu=i486 | FileCheck %s

%struct.foo = type { [88 x i8] }

declare void @bar(ptr nocapture, ptr align 4 byval(%struct.foo)) nounwind

; PR19012
; Don't clobber %esi if we have inline asm that clobbers %esp.
define void @test1(ptr nocapture %x, i32 %y, ptr %z) nounwind {
  call void @bar(ptr %z, ptr align 4 byval(%struct.foo) %x)
  call void asm sideeffect inteldialect "xor esp, esp", "=*m,~{flags},~{esp},~{esp},~{dirflag},~{fpsr},~{flags}"(ptr elementtype(i8) %z)
  ret void

; CHECK-LABEL: test1:
; CHECK: movl %esp, %esi
; CHECK-NOT: rep;movsl
}