File: 32-bit-subreg-zext.ll

package info (click to toggle)
llvm-toolchain-17 1%3A17.0.6-22
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid, trixie
  • size: 1,799,624 kB
  • sloc: cpp: 6,428,607; ansic: 1,383,196; asm: 793,408; python: 223,504; objc: 75,364; f90: 60,502; lisp: 33,869; pascal: 15,282; sh: 9,684; perl: 7,453; ml: 4,937; awk: 3,523; makefile: 2,889; javascript: 2,149; xml: 888; fortran: 619; cs: 573
file content (21 lines) | stat: -rw-r--r-- 555 bytes parent folder | download | duplicates (17) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
 
; RUN: llc -O2 -march=bpfel -mattr=+alu32 < %s | FileCheck %s
; RUN: llc -O2 -march=bpfel -mcpu=v3 < %s | FileCheck %s
; RUN: llc -O2 -march=bpfeb -mattr=+alu32 < %s | FileCheck %s
; RUN: llc -O2 -march=bpfeb -mcpu=v3 < %s | FileCheck %s
;
; long zext(unsigned int a)
; {
;   long b = a;
;   return b;
; }

; Function Attrs: norecurse nounwind
define dso_local i64 @zext(i32 %a) local_unnamed_addr #0 {
entry:
  %conv = zext i32 %a to i64
  ; CHECK-NOT: r[[#]] <<= 32
  ; CHECK-NOT: r[[#]] >>= 32
  ret i64 %conv
}

attributes #0 = { norecurse nounwind }