File: bitcast-sext-vector.ll

package info (click to toggle)
llvm-toolchain-6.0 1%3A6.0.1-10
  • links: PTS, VCS
  • area: main
  • in suites: buster
  • size: 598,080 kB
  • sloc: cpp: 3,046,253; ansic: 595,057; asm: 271,965; python: 128,926; objc: 106,554; sh: 21,906; lisp: 10,191; pascal: 6,094; ml: 5,544; perl: 5,265; makefile: 2,227; cs: 2,027; xml: 686; php: 212; csh: 117
file content (11 lines) | stat: -rw-r--r-- 367 bytes parent folder | download | duplicates (28) 
1
2
3
4
5
6
7
8
9
10
11
 
; RUN: opt < %s -instcombine -S | FileCheck %s
; CHECK: sext
; Don't fold zero/sign extensions with a bitcast between a vector and scalar.

define i32 @t(<4 x i8> %src1, <4 x i8> %src2) nounwind readonly {
entry:
	%cmp = icmp eq <4 x i8> %src1, %src2; <<4 x i1>> [#uses=1]
	%sext = sext <4 x i1> %cmp to <4 x i8>
	%val = bitcast <4 x i8> %sext to i32
	ret i32 %val
}