[AVX-512] Add VMOV64toSDZrm CodeGenOnly instruction based on the same instruction...

I can't prove that we can select this instruction or the AVX/SSE version, but I'm adding it for consistency for now so I can continue matching the load folding tables.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@294907 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/Target/X86/X86InstrAVX512.td b/lib/Target/X86/X86InstrAVX512.td
index d796da13f8ef9f777cd60a7e709519301bf1b5ab..531cef23ee8c0da4611779f8400090b81241c901 100644 (file)
--- a/lib/Target/X86/X86InstrAVX512.td
+++ b/lib/Target/X86/X86InstrAVX512.td
@@ -3070,6 +3070,10 @@ def VMOV64toSDZrr : AVX512BI<0x6E, MRMSrcReg, (outs FR64X:$dst), (ins GR64:$src)
                        "vmovq\t{$src, $dst|$dst, $src}",
                        [(set FR64X:$dst, (bitconvert GR64:$src))],
                        IIC_SSE_MOVDQ>, EVEX, VEX_W, Sched<[WriteMove]>;
+def VMOV64toSDZrm : AVX512XSI<0x7E, MRMSrcMem, (outs FR64X:$dst), (ins i64mem:$src),
+                      "vmovq\t{$src, $dst|$dst, $src}",
+                      [(set FR64X:$dst, (bitconvert (loadi64 addr:$src)))]>,
+                      EVEX, VEX_W, EVEX_CD8<8, CD8VT8>;
 def VMOVSDto64Zrr : AVX512BI<0x7E, MRMDestReg, (outs GR64:$dst), (ins FR64X:$src),
                          "vmovq\t{$src, $dst|$dst, $src}",
                          [(set GR64:$dst, (bitconvert FR64X:$src))],