mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-09-05 17:30:02 +00:00
- If INSERT_VECTOR_ELT is supported (above SSE2, either by custom sequence of legal insn), transform BUILD_VECTOR into SHUFFLE + INSERT_VECTOR_ELT if most of elements could be built from SHUFFLE with few (so far 1) elements being inserted. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166288 91177308-0d34-0410-b5e6-96231b3b80d8
16 lines
498 B
LLVM
16 lines
498 B
LLVM
; RUN: llc < %s -mcpu=corei7 -mtriple=x86_64-unknown-linux-gnu | FileCheck %s
|
|
|
|
define void @foo(<3 x float> %in, <4 x i8>* nocapture %out) nounwind {
|
|
%t0 = fptoui <3 x float> %in to <3 x i8>
|
|
%t1 = shufflevector <3 x i8> %t0, <3 x i8> undef, <4 x i32> <i32 0, i32 1, i32 2, i32 undef>
|
|
%t2 = insertelement <4 x i8> %t1, i8 -1, i32 3
|
|
store <4 x i8> %t2, <4 x i8>* %out, align 4
|
|
ret void
|
|
; CHECK: foo
|
|
; CHECK: cvttps2dq
|
|
; CHECK-NOT: pextrd
|
|
; CHECK: pinsrd
|
|
; CHECK-NEXT: pshufb
|
|
; CHECK: ret
|
|
}
|