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Unified Diff: src/x64/assembler-x64.cc

Issue 6873006: X64 tweaks. (Closed) Base URL: https://v8.googlecode.com/svn/branches/bleeding_edge
Patch Set: Added movaps and used it instead of movapd. Created 9 years, 8 months ago
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Index: src/x64/assembler-x64.cc
diff --git a/src/x64/assembler-x64.cc b/src/x64/assembler-x64.cc
index 5554db749a3484dc5690e53dfe528ba615d9c09e..c06bc0c4517581a50811fba07b389bd19e0bf1b0 100644
--- a/src/x64/assembler-x64.cc
+++ b/src/x64/assembler-x64.cc
@@ -2540,6 +2540,24 @@ void Assembler::movq(Register dst, XMMRegister src) {
}
+void Assembler::movq(XMMRegister dst, XMMRegister src) {
+ EnsureSpace ensure_space(this);
+ if (dst.low_bits() == 4) {
+ // Avoid unnecessary SIB byte.
+ emit(0xf3);
+ emit_optional_rex_32(dst, src);
+ emit(0x0F);
+ emit(0x7e);
+ emit_sse_operand(dst, src);
+ } else {
+ emit(0x66);
+ emit_optional_rex_32(src, dst);
+ emit(0x0F);
+ emit(0xD6);
+ emit_sse_operand(src, dst);
+ }
+}
+
void Assembler::movdqa(const Operand& dst, XMMRegister src) {
EnsureSpace ensure_space(this);
emit(0x66);
@@ -2603,6 +2621,42 @@ void Assembler::movsd(XMMRegister dst, const Operand& src) {
}
+void Assembler::movaps(XMMRegister dst, XMMRegister src) {
+ EnsureSpace ensure_space(this);
+ if (src.low_bits() == 4) {
+ // Try to avoid an unnecessary SIB byte.
+ emit_optional_rex_32(src, dst);
+ emit(0x0F);
+ emit(0x29);
+ emit_sse_operand(src, dst);
+ } else {
+ emit_optional_rex_32(dst, src);
+ emit(0x0F);
+ emit(0x28);
+ emit_sse_operand(dst, src);
+ }
+}
+
+
+void Assembler::movapd(XMMRegister dst, XMMRegister src) {
+ EnsureSpace ensure_space(this);
+ if (src.low_bits() == 4) {
+ // Try to avoid an unnecessary SIB byte.
+ emit(0x66);
+ emit_optional_rex_32(src, dst);
+ emit(0x0F);
+ emit(0x29);
+ emit_sse_operand(src, dst);
+ } else {
+ emit(0x66);
+ emit_optional_rex_32(dst, src);
+ emit(0x0F);
+ emit(0x28);
+ emit_sse_operand(dst, src);
+ }
+}
+
+
void Assembler::movss(XMMRegister dst, const Operand& src) {
EnsureSpace ensure_space(this);
emit(0xF3); // single
@@ -2833,6 +2887,15 @@ void Assembler::xorpd(XMMRegister dst, XMMRegister src) {
}
+void Assembler::xorps(XMMRegister dst, XMMRegister src) {
+ EnsureSpace ensure_space(this);
+ emit_optional_rex_32(dst, src);
+ emit(0x0F);
+ emit(0x57);
+ emit_sse_operand(dst, src);
+}
+
+
void Assembler::sqrtsd(XMMRegister dst, XMMRegister src) {
EnsureSpace ensure_space(this);
emit(0xF2);
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