mirrors/llvm-project
0
0
Fork 0
mirror of https://github.com/llvm/llvm-project.git synced 2025-04-24 23:46:05 +00:00
Code Issues Projects Releases Wiki Activity

[X86] Add test showing failure to merge concatenatable VPERMV3 nodes

Browse Source
This commit is contained in:
Simon Pilgrim 2025-03-17 14:52:51 +00:00
parent 1b237198dc
commit 37c3fbfa5a
1 changed files with 19 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

19
llvm/test/CodeGen/X86/vector-shuffle-combining-avx512vbmi.ll
View File

@ -158,3 +158,22 @@ define <64 x i8> @combine_vpermi2var_v64i8_with_mask(<64 x i8> %a0, <64 x i8> %a
%sel = select <64 x i1> %cmp, <64 x i8> zeroinitializer, <64 x i8> %perm
ret <64 x i8> %sel
}
define <32 x i8> @concat_vpermt2var_v16i8(<32 x i8> %x0, <32 x i8> %x1) {
; CHECK-LABEL: concat_vpermt2var_v16i8:
; CHECK: # %bb.0:
; CHECK-NEXT: vmovdqa {{.*#+}} xmm2 = [0,17,2,18,4,19,6,21,8,23,10,25,12,27,14,29]
; CHECK-NEXT: vpermi2b %xmm1, %xmm0, %xmm2
; CHECK-NEXT: vmovdqa {{.*#+}} xmm3 = [16,49,18,50,20,51,22,53,24,55,26,57,28,59,30,61]
; CHECK-NEXT: vpermi2b %ymm1, %ymm0, %ymm3
; CHECK-NEXT: vinserti128 $1, %xmm3, %ymm2, %ymm0
; CHECK-NEXT: ret{{[l|q]}}
%l0 = shufflevector <32 x i8> %x0, <32 x i8> poison, <16 x i32> <i32 0, i32 1, i32 2, i32 3, i32 4, i32 5, i32 6, i32 7, i32 8, i32 9, i32 10, i32 11, i32 12, i32 13, i32 14, i32 15>
%l1 = shufflevector <32 x i8> %x1, <32 x i8> poison, <16 x i32> <i32 0, i32 1, i32 2, i32 3, i32 4, i32 5, i32 6, i32 7, i32 8, i32 9, i32 10, i32 11, i32 12, i32 13, i32 14, i32 15>
%h0 = shufflevector <32 x i8> %x0, <32 x i8> poison, <16 x i32> <i32 16, i32 17, i32 18, i32 19, i32 20, i32 21, i32 22, i32 23, i32 24, i32 25, i32 26, i32 27, i32 28, i32 29, i32 30, i32 31>
%h1 = shufflevector <32 x i8> %x1, <32 x i8> poison, <16 x i32> <i32 16, i32 17, i32 18, i32 19, i32 20, i32 21, i32 22, i32 23, i32 24, i32 25, i32 26, i32 27, i32 28, i32 29, i32 30, i32 31>
%v0 = call <16 x i8> @llvm.x86.avx512.maskz.vpermt2var.qi.128(<16 x i8> <i8 0, i8 17, i8 2, i8 18, i8 4, i8 19, i8 6, i8 21, i8 8, i8 23, i8 10, i8 25, i8 12, i8 27, i8 14, i8 29>, <16 x i8> %l0, <16 x i8> %l1, i16 -1)
%v1 = call <16 x i8> @llvm.x86.avx512.maskz.vpermt2var.qi.128(<16 x i8> <i8 0, i8 17, i8 2, i8 18, i8 4, i8 19, i8 6, i8 21, i8 8, i8 23, i8 10, i8 25, i8 12, i8 27, i8 14, i8 29>, <16 x i8> %h0, <16 x i8> %h1, i16 -1)
%res = shufflevector <16 x i8> %v0, <16 x i8> %v1, <32 x i32> <i32 0, i32 1, i32 2, i32 3, i32 4, i32 5, i32 6, i32 7, i32 8, i32 9, i32 10, i32 11, i32 12, i32 13, i32 14, i32 15, i32 16, i32 17, i32 18, i32 19, i32 20, i32 21, i32 22, i32 23, i32 24, i32 25, i32 26, i32 27, i32 28, i32 29, i32 30, i32 31>
ret <32 x i8> %res
}