File: scalable-bitcast.ll

package info (click to toggle)
llvm-toolchain-16 1%3A16.0.6-15~deb12u1
  • links: PTS, VCS
  • area: main
  • in suites: bookworm
  • size: 1,634,792 kB
  • sloc: cpp: 6,179,261; ansic: 1,216,205; asm: 741,319; python: 196,614; objc: 75,325; f90: 49,640; lisp: 32,396; pascal: 12,286; sh: 9,394; perl: 7,442; ml: 5,494; awk: 3,523; makefile: 2,723; javascript: 1,206; xml: 886; fortran: 581; cs: 573
file content (13 lines) | stat: -rw-r--r-- 564 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> undef, 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
}