File: aix-inline-asm-clobber-warning.ll

package info (click to toggle)
llvm-toolchain-snapshot 1%3A22~%2B%2B20251023025710%2B3f47a7be1ae6-1~exp5
  • links: PTS, VCS
  • area: main
  • in suites: experimental
  • size: 2,336,076 kB
  • sloc: cpp: 7,822,956; ansic: 1,531,523; asm: 1,088,291; python: 260,779; f90: 98,765; objc: 70,846; lisp: 47,149; pascal: 17,852; sh: 8,636; ml: 5,111; perl: 4,720; makefile: 3,680; awk: 3,523; javascript: 2,270; xml: 892; fortran: 793
file content (15 lines) | stat: -rw-r--r-- 659 bytes parent folder | download | duplicates (5) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
 
; RUN: llc < %s -mtriple=powerpc-unknown-aix-xcoff -verify-machineinstrs \
; RUN:     -mcpu=pwr7 -mattr=+altivec -O0 2>&1 | FileCheck %s
; RUN: llc < %s -mtriple=powerpc64-unknown-aix-xcoff -verify-machineinstrs \
; RUN:     -mcpu=pwr7 -mattr=+altivec -O0 2>&1 | FileCheck %s

; CHECK: warning: inline asm clobber list contains reserved registers: R2
; CHECK-NEXT: note: Reserved registers on the clobber list may not be preserved across the asm statement, and clobbering them may lead to undefined behaviour.

@a = external global i32, align 4

define void @bar() {
  store i32 0, ptr @a, align 4
  call void asm sideeffect "li 2, 1", "~{r2}"()
  ret void
}