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-rw-r--r--lib/Target/X86/X86InstrSSE.td16
-rw-r--r--test/MC/X86/x86-64.s8
2 files changed, 24 insertions, 0 deletions
diff --git a/lib/Target/X86/X86InstrSSE.td b/lib/Target/X86/X86InstrSSE.td
index 7774057..8377c3a 100644
--- a/lib/Target/X86/X86InstrSSE.td
+++ b/lib/Target/X86/X86InstrSSE.td
@@ -2968,6 +2968,22 @@ def : Pat<(v4i32 (X86vzmovl (bc_v4i32 (loadv2i64 addr:$src)))),
(MOVZDI2PDIrm addr:$src)>;
}
+// These are the correct encodings of the instructions so that we know how to
+// read correct assembly, even though we continue to emit the wrong ones for
+// compatibility with Darwin's buggy assembler.
+def : InstAlias<"movq\t{$src, $dst|$dst, $src}",
+ (MOV64toPQIrr VR128:$dst, GR64:$src), 0>;
+def : InstAlias<"movq\t{$src, $dst|$dst, $src}",
+ (MOV64toSDrr FR64:$dst, GR64:$src), 0>;
+def : InstAlias<"movq\t{$src, $dst|$dst, $src}",
+ (MOVPQIto64rr GR64:$dst, VR128:$src), 0>;
+def : InstAlias<"movq\t{$src, $dst|$dst, $src}",
+ (MOVSDto64rr GR64:$dst, FR64:$src), 0>;
+def : InstAlias<"movq\t{$src, $dst|$dst, $src}",
+ (VMOVZQI2PQIrr VR128:$dst, GR64:$src), 0>;
+def : InstAlias<"movq\t{$src, $dst|$dst, $src}",
+ (MOVZQI2PQIrr VR128:$dst, GR64:$src), 0>;
+
//===---------------------------------------------------------------------===//
// SSE2 - Move Quadword
//===---------------------------------------------------------------------===//
diff --git a/test/MC/X86/x86-64.s b/test/MC/X86/x86-64.s
index a36ba25..472748f 100644
--- a/test/MC/X86/x86-64.s
+++ b/test/MC/X86/x86-64.s
@@ -1128,3 +1128,11 @@ xsetbv // CHECK: xsetbv # encoding: [0x0f,0x01,0xd1]
// CHECK: strq
// CHECK: encoding: [0x48,0x0f,0x00,0xc8]
str %rax
+
+// CHECK: movd %rdi, %xmm0
+// CHECK: encoding: [0x66,0x48,0x0f,0x6e,0xc7]
+ movq %rdi,%xmm0
+
+// CHECK: movd %rdi, %xmm0
+// CHECK: encoding: [0x66,0x48,0x0f,0x6e,0xc7]
+ movd %rdi,%xmm0