[PATCH] D102751: [X86] Limit X86InterleavedAccessGroup to handle the same type case only

[Pengfei Wang via Phabricator via llvm-commits]

This revision was automatically updated to reflect the committed changes.
Closed by commit rGca23a38e3731: [X86] Limit X86InterleavedAccessGroup to handle the same type case only (authored by pengfei).

Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D102751/new/

https://reviews.llvm.org/D102751

Files:
  llvm/lib/Target/X86/X86InterleavedAccess.cpp
  llvm/test/CodeGen/X86/x86-interleaved-access.ll


Index: llvm/test/CodeGen/X86/x86-interleaved-access.ll
===================================================================
--- llvm/test/CodeGen/X86/x86-interleaved-access.ll
+++ llvm/test/CodeGen/X86/x86-interleaved-access.ll
@@ -1930,3 +1930,22 @@
   store <16 x i64> %r, <16 x i64>* %d, align 8
   ret void
 }
+
+define <2 x i64> @PR37616(<16 x i64>* %a0) {
+; AVX1-LABEL: PR37616:
+; AVX1:       # %bb.0:
+; AVX1-NEXT:    vmovaps 16(%rdi), %xmm0
+; AVX1-NEXT:    vunpcklpd {{.*#+}} xmm0 = xmm0[0],mem[0]
+; AVX1-NEXT:    retq
+;
+; AVX2OR512-LABEL: PR37616:
+; AVX2OR512:       # %bb.0:
+; AVX2OR512-NEXT:    vmovaps (%rdi), %ymm0
+; AVX2OR512-NEXT:    vunpcklpd {{.*#+}} ymm0 = ymm0[0],mem[0],ymm0[2],mem[2]
+; AVX2OR512-NEXT:    vextractf128 $1, %ymm0, %xmm0
+; AVX2OR512-NEXT:    vzeroupper
+; AVX2OR512-NEXT:    retq
+  %load = load <16 x i64>, <16 x i64>* %a0, align 128
+  %shuffle = shufflevector <16 x i64> %load, <16 x i64> undef, <2 x i32> <i32 2, i32 6>
+  ret <2 x i64> %shuffle
+}
Index: llvm/lib/Target/X86/X86InterleavedAccess.cpp
===================================================================
--- llvm/lib/Target/X86/X86InterleavedAccess.cpp
+++ llvm/lib/Target/X86/X86InterleavedAccess.cpp
@@ -733,6 +733,9 @@
     // results by generating some sort of (optimized) target-specific
     // instructions.
 
+    if (ShuffleTy->getNumElements() != NumSubVecElems)
+      return false;
+
     switch (NumSubVecElems) {
     default:
       return false;


-------------- next part --------------
A non-text attachment was scrubbed...
Name: D102751.346390.patch
Type: text/x-patch
Size: 1476 bytes
Desc: not available
URL: <http://lists.llvm.org/pipermail/llvm-commits/attachments/20210519/85377231/attachment.bin>