Reviewers: Yang,
Description:
[x64] add disasm for two fp instructions
BUG=
Please review this at https://codereview.chromium.org/146583002/
SVN Base: git://github.com/v8/v8.git@master
Affected files (+7, -0 lines):
M src/x64/disasm-x64.cc
M test/cctest/test-disasm-ia32.cc
M test/cctest/test-disasm-x64.cc
Index: src/x64/disasm-x64.cc
diff --git a/src/x64/disasm-x64.cc b/src/x64/disasm-x64.cc
index
76b541c01002b0f8ec1cb53f3220b8914d7ae0f1..476eab2b42feeb0e2b64453c514b4342cbeb2620
100644
--- a/src/x64/disasm-x64.cc
+++ b/src/x64/disasm-x64.cc
@@ -934,6 +934,7 @@ int DisassemblerX64::RegisterFPUInstruction(int
escape_opcode,
case 0xF5: mnem = "fprem1"; break;
case 0xF7: mnem = "fincstp"; break;
case 0xF8: mnem = "fprem"; break;
+ case 0xFC: mnem = "frndint"; break;
case 0xFD: mnem = "fscale"; break;
case 0xFE: mnem = "fsin"; break;
case 0xFF: mnem = "fcos"; break;
@@ -956,6 +957,8 @@ int DisassemblerX64::RegisterFPUInstruction(int
escape_opcode,
has_register = true;
} else if (modrm_byte == 0xE2) {
mnem = "fclex";
+ } else if (modrm_byte == 0xE3) {
+ mnem = "fninit";
} else {
UnimplementedInstruction();
}
Index: test/cctest/test-disasm-ia32.cc
diff --git a/test/cctest/test-disasm-ia32.cc
b/test/cctest/test-disasm-ia32.cc
index
722194daa220325068a023adc71f9893679c88ee..f32a69c4a36587f1c64dccbab42e83055fb393a3
100644
--- a/test/cctest/test-disasm-ia32.cc
+++ b/test/cctest/test-disasm-ia32.cc
@@ -349,6 +349,8 @@ TEST(DisasmIa320) {
__ fdivp(3);
__ fcompp();
__ fwait();
+ __ frndint();
+ __ fninit();
__ nop();
// SSE instruction
Index: test/cctest/test-disasm-x64.cc
diff --git a/test/cctest/test-disasm-x64.cc b/test/cctest/test-disasm-x64.cc
index
8806764c51ca611fed50133b6b698de8f4d69e07..9fce25fae440d0574b7535d2705bbfb15d5d6d94
100644
--- a/test/cctest/test-disasm-x64.cc
+++ b/test/cctest/test-disasm-x64.cc
@@ -330,6 +330,8 @@ TEST(DisasmX64) {
__ fdivp(3);
__ fcompp();
__ fwait();
+ __ frndint();
+ __ fninit();
__ nop();
// SSE instruction
--
--
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