File: bitcast-sext-vector.ll

package info (click to toggle)
llvm-toolchain-19 1%3A19.1.4-1~deb12u1
  • links: PTS, VCS
  • area: main
  • in suites: bookworm
  • size: 1,998,488 kB
  • sloc: cpp: 6,951,470; ansic: 1,486,052; asm: 913,550; python: 232,020; f90: 80,126; objc: 75,349; lisp: 37,276; pascal: 16,990; sh: 9,935; ml: 5,058; perl: 4,724; awk: 3,523; makefile: 3,164; javascript: 2,504; xml: 892; fortran: 664; cs: 573
file content (11 lines) | stat: -rw-r--r-- 374 bytes parent folder | download | duplicates (15) 
1
2
3
4
5
6
7
8
9
10
11
 
; RUN: opt < %s -passes=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
}