llvm-project/llvm/test/Transforms/VectorCombine/arbitrary-precision-int.ll
V.Rybalov 19a31b27b0
[VectorCombine] Fixing bitcast processing in VectorCombine (#185075)
Fixing bitcast instruction processing in VectorCombine pass
that operates: arbitrary precision integer types.
2026-03-09 12:47:56 -07:00

20 lines
846 B
LLVM

; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 6
; RUN: opt < %s -passes=vector-combine -S | FileCheck %s --check-prefixes=CHECK
; The test verifies that the optimization accepts and does not modify the instructions.
define void @test() #0 {
; CHECK-LABEL: define void @test() #0 {
; CHECK-NEXT: [[V1:%.*]] = shufflevector <5 x i16> zeroinitializer, <5 x i16> poison, <10 x i32> zeroinitializer
; CHECK-NEXT: [[V2:%.*]] = bitcast <10 x i16> [[V1]] to <4 x i40>
; CHECK-NEXT: call void @use.vec(<4 x i40> [[V2]])
; CHECK-NEXT: ret void
;
%S = shufflevector <5 x i16> zeroinitializer, <5 x i16> poison, <10 x i32> zeroinitializer
%bc = bitcast <10 x i16> %S to <4 x i40>
call void @use.vec(<4 x i40> %bc)
ret void
}
declare void @use.vec(<4 x i40>)
attributes #0 = { strictfp }