From: Craig Topper <craig.topper@gmail.com>
Date: Wed, 9 Nov 2016 05:31:53 +0000 (+0000)
Subject: [AVX-512] Add test cases to demonstrate PR30947. We accidentally use 32 byte aligned... 
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=89f0495611df29d8468d78d489d89b36ab3d5448;p=llvm

[AVX-512] Add test cases to demonstrate PR30947. We accidentally use 32 byte aligned store instructions when the original store was only 16 byte aligned if the store is from the lower bits of a subvector extract.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@286341 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/test/CodeGen/X86/avx512-extract-subvector.ll b/test/CodeGen/X86/avx512-extract-subvector.ll
index 21419bd0296..61f8299983f 100644
--- a/test/CodeGen/X86/avx512-extract-subvector.ll
+++ b/test/CodeGen/X86/avx512-extract-subvector.ll
@@ -285,6 +285,30 @@ entry:
   ret void
 }
 
+define void @extract_subvector512_v4f64_store_lo_align_16(double* nocapture %addr, <8 x double> %a) nounwind uwtable ssp {
+; SKX-LABEL: extract_subvector512_v4f64_store_lo_align_16:
+; SKX:       ## BB#0: ## %entry
+; SKX-NEXT:    vmovaps %ymm0, (%rdi)
+; SKX-NEXT:    retq
+entry:
+  %0 = shufflevector <8 x double> %a, <8 x double> undef, <4 x i32> <i32 0, i32 1, i32 2, i32 3>
+  %1 = bitcast double* %addr to <4 x double>*
+  store <4 x double> %0, <4 x double>* %1, align 16
+  ret void
+}
+
+define void @extract_subvector512_v4f64_store_lo_align_32(double* nocapture %addr, <8 x double> %a) nounwind uwtable ssp {
+; SKX-LABEL: extract_subvector512_v4f64_store_lo_align_32:
+; SKX:       ## BB#0: ## %entry
+; SKX-NEXT:    vmovaps %ymm0, (%rdi)
+; SKX-NEXT:    retq
+entry:
+  %0 = shufflevector <8 x double> %a, <8 x double> undef, <4 x i32> <i32 0, i32 1, i32 2, i32 3>
+  %1 = bitcast double* %addr to <4 x double>*
+  store <4 x double> %0, <4 x double>* %1, align 32
+  ret void
+}
+
 define void @extract_subvector512_v8f32_store_lo(float* nocapture %addr, <16 x float> %a) nounwind uwtable ssp {
 ; SKX-LABEL: extract_subvector512_v8f32_store_lo:
 ; SKX:       ## BB#0: ## %entry
@@ -297,6 +321,30 @@ entry:
   ret void
 }
 
+define void @extract_subvector512_v8f32_store_lo_align_16(float* nocapture %addr, <16 x float> %a) nounwind uwtable ssp {
+; SKX-LABEL: extract_subvector512_v8f32_store_lo_align_16:
+; SKX:       ## BB#0: ## %entry
+; SKX-NEXT:    vmovaps %ymm0, (%rdi)
+; SKX-NEXT:    retq
+entry:
+  %0 = shufflevector <16 x float> %a, <16 x float> undef, <8 x i32> <i32 0, i32 1, i32 2, i32 3, i32 4, i32 5, i32 6, i32 7>
+  %1 = bitcast float* %addr to <8 x float>*
+  store <8 x float> %0, <8 x float>* %1, align 16
+  ret void
+}
+
+define void @extract_subvector512_v8f32_store_lo_align_32(float* nocapture %addr, <16 x float> %a) nounwind uwtable ssp {
+; SKX-LABEL: extract_subvector512_v8f32_store_lo_align_32:
+; SKX:       ## BB#0: ## %entry
+; SKX-NEXT:    vmovaps %ymm0, (%rdi)
+; SKX-NEXT:    retq
+entry:
+  %0 = shufflevector <16 x float> %a, <16 x float> undef, <8 x i32> <i32 0, i32 1, i32 2, i32 3, i32 4, i32 5, i32 6, i32 7>
+  %1 = bitcast float* %addr to <8 x float>*
+  store <8 x float> %0, <8 x float>* %1, align 32
+  ret void
+}
+
 define void @extract_subvector512_v4i64_store_lo(i64* nocapture %addr, <8 x i64> %a) nounwind uwtable ssp {
 ; SKX-LABEL: extract_subvector512_v4i64_store_lo:
 ; SKX:       ## BB#0: ## %entry
@@ -309,6 +357,30 @@ entry:
   ret void
 }
 
+define void @extract_subvector512_v4i64_store_lo_align_16(i64* nocapture %addr, <8 x i64> %a) nounwind uwtable ssp {
+; SKX-LABEL: extract_subvector512_v4i64_store_lo_align_16:
+; SKX:       ## BB#0: ## %entry
+; SKX-NEXT:    vmovaps %ymm0, (%rdi)
+; SKX-NEXT:    retq
+entry:
+  %0 = shufflevector <8 x i64> %a, <8 x i64> undef, <4 x i32> <i32 0, i32 1, i32 2, i32 3>
+  %1 = bitcast i64* %addr to <4 x i64>*
+  store <4 x i64> %0, <4 x i64>* %1, align 16
+  ret void
+}
+
+define void @extract_subvector512_v4i64_store_lo_align_32(i64* nocapture %addr, <8 x i64> %a) nounwind uwtable ssp {
+; SKX-LABEL: extract_subvector512_v4i64_store_lo_align_32:
+; SKX:       ## BB#0: ## %entry
+; SKX-NEXT:    vmovaps %ymm0, (%rdi)
+; SKX-NEXT:    retq
+entry:
+  %0 = shufflevector <8 x i64> %a, <8 x i64> undef, <4 x i32> <i32 0, i32 1, i32 2, i32 3>
+  %1 = bitcast i64* %addr to <4 x i64>*
+  store <4 x i64> %0, <4 x i64>* %1, align 32
+  ret void
+}
+
 define void @extract_subvector512_v8i32_store_lo(i32* nocapture %addr, <16 x i32> %a) nounwind uwtable ssp {
 ; SKX-LABEL: extract_subvector512_v8i32_store_lo:
 ; SKX:       ## BB#0: ## %entry
@@ -321,6 +393,30 @@ entry:
   ret void
 }
 
+define void @extract_subvector512_v8i32_store_lo_align_16(i32* nocapture %addr, <16 x i32> %a) nounwind uwtable ssp {
+; SKX-LABEL: extract_subvector512_v8i32_store_lo_align_16:
+; SKX:       ## BB#0: ## %entry
+; SKX-NEXT:    vmovaps %ymm0, (%rdi)
+; SKX-NEXT:    retq
+entry:
+  %0 = shufflevector <16 x i32> %a, <16 x i32> undef, <8 x i32> <i32 0, i32 1, i32 2, i32 3, i32 4, i32 5, i32 6, i32 7>
+  %1 = bitcast i32* %addr to <8 x i32>*
+  store <8 x i32> %0, <8 x i32>* %1, align 16
+  ret void
+}
+
+define void @extract_subvector512_v8i32_store_lo_align_32(i32* nocapture %addr, <16 x i32> %a) nounwind uwtable ssp {
+; SKX-LABEL: extract_subvector512_v8i32_store_lo_align_32:
+; SKX:       ## BB#0: ## %entry
+; SKX-NEXT:    vmovaps %ymm0, (%rdi)
+; SKX-NEXT:    retq
+entry:
+  %0 = shufflevector <16 x i32> %a, <16 x i32> undef, <8 x i32> <i32 0, i32 1, i32 2, i32 3, i32 4, i32 5, i32 6, i32 7>
+  %1 = bitcast i32* %addr to <8 x i32>*
+  store <8 x i32> %0, <8 x i32>* %1, align 32
+  ret void
+}
+
 define void @extract_subvector512_v16i16_store_lo(i16* nocapture %addr, <32 x i16> %a) nounwind uwtable ssp {
 ; SKX-LABEL: extract_subvector512_v16i16_store_lo:
 ; SKX:       ## BB#0: ## %entry
@@ -333,6 +429,30 @@ entry:
   ret void
 }
 
+define void @extract_subvector512_v16i16_store_lo_align_16(i16* nocapture %addr, <32 x i16> %a) nounwind uwtable ssp {
+; SKX-LABEL: extract_subvector512_v16i16_store_lo_align_16:
+; SKX:       ## BB#0: ## %entry
+; SKX-NEXT:    vmovaps %ymm0, (%rdi)
+; SKX-NEXT:    retq
+entry:
+  %0 = shufflevector <32 x i16> %a, <32 x i16> undef, <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>
+  %1 = bitcast i16* %addr to <16 x i16>*
+  store <16 x i16> %0, <16 x i16>* %1, align 16
+  ret void
+}
+
+define void @extract_subvector512_v16i16_store_lo_align_32(i16* nocapture %addr, <32 x i16> %a) nounwind uwtable ssp {
+; SKX-LABEL: extract_subvector512_v16i16_store_lo_align_32:
+; SKX:       ## BB#0: ## %entry
+; SKX-NEXT:    vmovaps %ymm0, (%rdi)
+; SKX-NEXT:    retq
+entry:
+  %0 = shufflevector <32 x i16> %a, <32 x i16> undef, <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>
+  %1 = bitcast i16* %addr to <16 x i16>*
+  store <16 x i16> %0, <16 x i16>* %1, align 32
+  ret void
+}
+
 define void @extract_subvector512_v32i8_store_lo(i8* nocapture %addr, <64 x i8> %a) nounwind uwtable ssp {
 ; SKX-LABEL: extract_subvector512_v32i8_store_lo:
 ; SKX:       ## BB#0: ## %entry
@@ -345,6 +465,30 @@ entry:
   ret void
 }
 
+define void @extract_subvector512_v32i8_store_lo_align_16(i8* nocapture %addr, <64 x i8> %a) nounwind uwtable ssp {
+; SKX-LABEL: extract_subvector512_v32i8_store_lo_align_16:
+; SKX:       ## BB#0: ## %entry
+; SKX-NEXT:    vmovaps %ymm0, (%rdi)
+; SKX-NEXT:    retq
+entry:
+  %0 = shufflevector <64 x i8> %a, <64 x i8> undef, <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>
+  %1 = bitcast i8* %addr to <32 x i8>*
+  store <32 x i8> %0, <32 x i8>* %1, align 16
+  ret void
+}
+
+define void @extract_subvector512_v32i8_store_lo_align_32(i8* nocapture %addr, <64 x i8> %a) nounwind uwtable ssp {
+; SKX-LABEL: extract_subvector512_v32i8_store_lo_align_32:
+; SKX:       ## BB#0: ## %entry
+; SKX-NEXT:    vmovaps %ymm0, (%rdi)
+; SKX-NEXT:    retq
+entry:
+  %0 = shufflevector <64 x i8> %a, <64 x i8> undef, <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>
+  %1 = bitcast i8* %addr to <32 x i8>*
+  store <32 x i8> %0, <32 x i8>* %1, align 32
+  ret void
+}
+
 define <4 x double> @test_mm512_mask_extractf64x4_pd(<4 x double> %__W, i8 %__U, <8 x double> %__A) {
 ; SKX-LABEL: test_mm512_mask_extractf64x4_pd:
 ; SKX:       ## BB#0: ## %entry