[X86] AVX512: Specify compressed displacement for vmovntdqa

Use the max 64-bit element size with EVEX_CD8.  This should work since element
size is ignored for a full-vector access (FVM).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@211175 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/Target/X86/X86InstrAVX512.td b/lib/Target/X86/X86InstrAVX512.td
index 4b9f560597fead8ccd96b73456d3f58b3eb66453..618f42abe94eada8d73c38a1d4ab50ef8a221378 100644 (file)
--- a/lib/Target/X86/X86InstrAVX512.td
+++ b/lib/Target/X86/X86InstrAVX512.td
@@ -1798,7 +1798,7 @@ def VMOVNTDQAZrm : AVX5128I<0x2A, MRMSrcMem, (outs VR512:$dst),
                             "vmovntdqa\t{$src, $dst|$dst, $src}",
                             [(set VR512:$dst,
                               (int_x86_avx512_movntdqa addr:$src))]>,
-                   EVEX, EVEX_V512;
+                   EVEX, EVEX_V512, EVEX_CD8<64, CD8VF>;
 
 //===----------------------------------------------------------------------===//
 // AVX-512 - Integer arithmetic

diff --git a/test/MC/X86/avx512-encodings.s b/test/MC/X86/avx512-encodings.s
index f38eaf5402fedad3f2a37d309bf1558a120580a0..a7a87cd0b405f627ae922ad46864536a6bc2921f 100644 (file)
--- a/test/MC/X86/avx512-encodings.s
+++ b/test/MC/X86/avx512-encodings.s
@@ -3159,3 +3159,7 @@ vmovntdqa 0x12345678(%rbx), %zmm13
 // CHECK: vmovntdqa
 // CHECK: encoding: [0x62,0xc2,0x7d,0x48,0x2a,0x14,0x56]
 vmovntdqa (%r14,%rdx,2), %zmm18
+
+// CHECK: vmovntdqa
+// CHECK: encoding: [0x62,0xc2,0x7d,0x48,0x2a,0x7c,0x14,0x02]
+vmovntdqa 128(%r12,%rdx), %zmm23