File: bitcast-sext-vector.ll

package info (click to toggle)
llvm-toolchain-15 1%3A15.0.6-4
  • links: PTS, VCS
  • area: main
  • in suites: bookworm
  • size: 1,554,644 kB
  • sloc: cpp: 5,922,452; ansic: 1,012,136; asm: 674,362; python: 191,568; objc: 73,855; f90: 42,327; lisp: 31,913; pascal: 11,973; javascript: 10,144; sh: 9,421; perl: 7,447; ml: 5,527; awk: 3,523; makefile: 2,520; xml: 885; cs: 573; fortran: 567
file content (11 lines) | stat: -rw-r--r-- 374 bytes parent folder | download | duplicates (13)
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
}