From: Craig Topper <craig.topper@gmail.com>
Date: Mon, 21 Nov 2016 07:51:31 +0000 (+0000)
Subject: [AVX-512] Add EVEX form of VMOVZPQILo2PQIZrm to load folding tables to match SSE... 
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=fd72811874a3def1b02580fe7ac220491ee84210;p=llvm

[AVX-512] Add EVEX form of VMOVZPQILo2PQIZrm to load folding tables to match SSE and AVX.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@287523 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/Target/X86/X86InstrInfo.cpp b/lib/Target/X86/X86InstrInfo.cpp
index cf12b3665a5..3c253a6ee0f 100644
--- a/lib/Target/X86/X86InstrInfo.cpp
+++ b/lib/Target/X86/X86InstrInfo.cpp
@@ -855,6 +855,7 @@ X86InstrInfo::X86InstrInfo(X86Subtarget &STI)
 
     // AVX-512 foldable instructions
     { X86::VMOV64toPQIZrr,   X86::VMOVQI2PQIZrm,      0 },
+    { X86::VMOVZPQILo2PQIZrr,X86::VMOVZPQILo2PQIZrm,  TB_ALIGN_16 },
     { X86::VMOVDI2SSZrr,     X86::VMOVDI2SSZrm,       0 },
     { X86::VMOVAPDZrr,       X86::VMOVAPDZrm,         TB_ALIGN_64 },
     { X86::VMOVAPSZrr,       X86::VMOVAPSZrm,         TB_ALIGN_64 },
diff --git a/test/CodeGen/X86/stack-folding-int-avx512.ll b/test/CodeGen/X86/stack-folding-int-avx512.ll
index ed66966bdef..58d88c597fe 100644
--- a/test/CodeGen/X86/stack-folding-int-avx512.ll
+++ b/test/CodeGen/X86/stack-folding-int-avx512.ll
@@ -377,7 +377,7 @@ define <4 x i64> @stack_fold_extracti64x4(<8 x i64> %a0, <8 x i64> %a1) {
 define <16 x i32> @stack_fold_inserti32x8(<8 x i32> %a0, <8 x i32> %a1) {
   ;CHECK-LABEL: stack_fold_inserti32x8
   ;CHECK:       vinserti32x8 $1, {{-?[0-9]*}}(%rsp), {{%zmm[0-9][0-9]*}}, {{%zmm[0-9][0-9]*}} {{.*#+}} 32-byte Folded Reload
-  %1 = tail call <2 x i64> asm sideeffect "nop", "=x,~{xmm2},~{xmm3},~{xmm4},~{xmm5},~{xmm6},~{xmm7},~{xmm8},~{xmm9},~{xmm10},~{xmm11},~{xmm12},~{xmm13},~{xmm14},~{xmm15},~{flags}"()
+  %1 = tail call <2 x i64> asm sideeffect "nop", "=x,~{xmm2},~{xmm3},~{xmm4},~{xmm5},~{xmm6},~{xmm7},~{xmm8},~{xmm9},~{xmm10},~{xmm11},~{xmm12},~{xmm13},~{xmm14},~{xmm15},~{xmm16},~{xmm17},~{xmm18},~{xmm19},~{xmm20},~{xmm21},~{xmm22},~{xmm23},~{xmm24},~{xmm25},~{xmm26},~{xmm27},~{xmm28},~{xmm29},~{xmm30},~{xmm31},~{flags}"()
   %2 = shufflevector <8 x i32> %a0, <8 x i32> %a1, <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>
   ; add forces execution domain
   %3 = add <16 x i32> %2, <i32 1, i32 1, i32 1, i32 1, i32 1, i32 1, i32 1, i32 1, i32 1, i32 1, i32 1, i32 1, i32 1, i32 1, i32 1, i32 1>
@@ -387,9 +387,19 @@ define <16 x i32> @stack_fold_inserti32x8(<8 x i32> %a0, <8 x i32> %a1) {
 define <8 x i64> @stack_fold_inserti64x4(<4 x i64> %a0, <4 x i64> %a1) {
   ;CHECK-LABEL: stack_fold_inserti64x4
   ;CHECK:       vinserti64x4 $1, {{-?[0-9]*}}(%rsp), {{%zmm[0-9][0-9]*}}, {{%zmm[0-9][0-9]*}} {{.*#+}} 32-byte Folded Reload
-  %1 = tail call <2 x i64> asm sideeffect "nop", "=x,~{xmm2},~{xmm3},~{xmm4},~{xmm5},~{xmm6},~{xmm7},~{xmm8},~{xmm9},~{xmm10},~{xmm11},~{xmm12},~{xmm13},~{xmm14},~{xmm15},~{flags}"()
+  %1 = tail call <2 x i64> asm sideeffect "nop", "=x,~{xmm2},~{xmm3},~{xmm4},~{xmm5},~{xmm6},~{xmm7},~{xmm8},~{xmm9},~{xmm10},~{xmm11},~{xmm12},~{xmm13},~{xmm14},~{xmm15},~{xmm16},~{xmm17},~{xmm18},~{xmm19},~{xmm20},~{xmm21},~{xmm22},~{xmm23},~{xmm24},~{xmm25},~{xmm26},~{xmm27},~{xmm28},~{xmm29},~{xmm30},~{xmm31},~{flags}"()
   %2 = shufflevector <4 x i64> %a0, <4 x i64> %a1, <8 x i32> <i32 0, i32 1, i32 2, i32 3, i32 4, i32 5, i32 6, i32 7>
   ; add forces execution domain
   %3 = add <8 x i64> %2, <i64 1, i64 1, i64 1, i64 1, i64 1, i64 1, i64 1, i64 1>
   ret <8 x i64> %3
 }
+
+define <2 x i64> @stack_fold_movq_load(<2 x i64> %a0) {
+  ;CHECK-LABEL: stack_fold_movq_load
+  ;CHECK:       movq {{-?[0-9]*}}(%rsp), {{%xmm[0-9][0-9]*}} {{.*#+}} 16-byte Folded Reload
+  %1 = tail call <2 x i64> asm sideeffect "nop", "=x,~{xmm1},~{xmm2},~{xmm3},~{xmm4},~{xmm5},~{xmm6},~{xmm7},~{xmm8},~{xmm9},~{xmm10},~{xmm11},~{xmm12},~{xmm13},~{xmm14},~{xmm15},~{xmm16},~{xmm17},~{xmm18},~{xmm19},~{xmm20},~{xmm21},~{xmm22},~{xmm23},~{xmm24},~{xmm25},~{xmm26},~{xmm27},~{xmm28},~{xmm29},~{xmm30},~{xmm31},~{flags}"()
+  %2 = shufflevector <2 x i64> %a0, <2 x i64> zeroinitializer, <2 x i32> <i32 0, i32 2>
+  ; add forces execution domain
+  %3 = add <2 x i64> %2, <i64 1, i64 1>
+  ret <2 x i64> %3
+}