File: undef-sext.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 (14 lines) | stat: -rw-r--r-- 331 bytes parent folder | download | duplicates (14) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
 
; RUN: llc < %s -mtriple=armv7-apple-darwin -mcpu=cortex-a8 | FileCheck %s

; No need to sign-extend undef.

define i32 @t(ptr %a) nounwind {
entry:
; CHECK-LABEL: t:
; CHECK: ldr r0, [r0]
; CHECK: bx lr
  %0 = sext i16 undef to i32
  %1 = getelementptr inbounds i32, ptr %a, i32 %0
  %2 = load i32, ptr %1, align 4
  ret i32 %2
}