File: scalable-bitcast-inseltpoison.ll

package info (click to toggle)
llvm-toolchain-19 1%3A19.1.7-3
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid, trixie
  • size: 1,998,520 kB
  • sloc: cpp: 6,951,680; ansic: 1,486,157; asm: 913,598; python: 232,024; f90: 80,126; objc: 75,281; lisp: 37,276; pascal: 16,990; sh: 10,009; ml: 5,058; perl: 4,724; awk: 3,523; makefile: 3,167; javascript: 2,504; xml: 892; fortran: 664; cs: 573
file content (13 lines) | stat: -rw-r--r-- 565 bytes parent folder | download | duplicates (13) 
1
2
3
4
5
6
7
8
9
10
11
12
13
 
; RUN: opt -passes=instcombine -S < %s | FileCheck %s

; We shouldn't fold bitcast(insert <vscale x 1 x iX> .., iX %val, i32 0)
; into bitcast(iX %val) for scalable vectors.
define <vscale x 2 x i8> @bitcast_of_insert_i8_i16(i16 %val) #0 {
; CHECK-LABEL: @bitcast_of_insert_i8_i16(
; CHECK-NOT:   bitcast i16 %val to <vscale x 2 x i8>
; CHECK:       bitcast <vscale x 1 x i16> %op2 to <vscale x 2 x i8>
entry:
  %op2 = insertelement <vscale x 1 x i16> poison, i16 %val, i32 0
  %0 = bitcast <vscale x 1 x i16> %op2 to <vscale x 2 x i8>
  ret <vscale x 2 x i8> %0
}