File: ipra-r0-returned.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 (18 lines) | stat: -rw-r--r-- 437 bytes parent folder | download | duplicates (21) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
 
; RUN: llc -mtriple armv7a--none-eabi -enable-ipra=false < %s | FileCheck %s
; RUN: llc -mtriple armv7a--none-eabi -enable-ipra=true  < %s | FileCheck %s

define i32 @returns_r0(i32 returned %a)  {
entry:
  call void asm sideeffect "", "~{r0}"()
  ret i32 %a
}

define i32 @test(i32 %a) {
; CHECK-LABEL: test:
entry:
; CHECK-NOT: r0
; CHECK: bl      returns_r0
; CHECK-NOT: r0
  %b = call i32 @returns_r0(i32 returned %a)
  ret i32 %a
}