Revision: 18640
Author: [email protected]
Date: Thu Jan 16 11:35:30 2014 UTC
Log: Update load_rax and store_rax to support X32
[email protected]
Review URL: https://codereview.chromium.org/103843002
http://code.google.com/p/v8/source/detail?r=18640
Modified:
/branches/bleeding_edge/src/x64/assembler-x64.cc
=======================================
--- /branches/bleeding_edge/src/x64/assembler-x64.cc Wed Jan 8 07:02:02
2014 UTC
+++ /branches/bleeding_edge/src/x64/assembler-x64.cc Thu Jan 16 11:35:30
2014 UTC
@@ -1305,9 +1305,19 @@
void Assembler::load_rax(void* value, RelocInfo::Mode mode) {
EnsureSpace ensure_space(this);
- emit(0x48); // REX.W
- emit(0xA1);
- emitp(value, mode);
+ if (kPointerSize == kInt64Size) {
+ emit(0x48); // REX.W
+ emit(0xA1);
+ emitp(value, mode);
+ } else {
+ ASSERT(kPointerSize == kInt32Size);
+ emit(0xA1);
+ emitp(value, mode);
+ // In 64-bit mode, need to zero extend the operand to 8 bytes.
+ // See 2.2.1.4 in Intel64 and IA32 Architectures Software
+ // Developer's Manual Volume 2.
+ emitl(0);
+ }
}
@@ -1888,9 +1898,19 @@
void Assembler::store_rax(void* dst, RelocInfo::Mode mode) {
EnsureSpace ensure_space(this);
- emit(0x48); // REX.W
- emit(0xA3);
- emitp(dst, mode);
+ if (kPointerSize == kInt64Size) {
+ emit(0x48); // REX.W
+ emit(0xA3);
+ emitp(dst, mode);
+ } else {
+ ASSERT(kPointerSize == kInt32Size);
+ emit(0xA3);
+ emitp(dst, mode);
+ // In 64-bit mode, need to zero extend the operand to 8 bytes.
+ // See 2.2.1.4 in Intel64 and IA32 Architectures Software
+ // Developer's Manual Volume 2.
+ emitl(0);
+ }
}
--
--
v8-dev mailing list
[email protected]
http://groups.google.com/group/v8-dev
---
You received this message because you are subscribed to the Google Groups "v8-dev" group.
To unsubscribe from this group and stop receiving emails from it, send an email
to [email protected].
For more options, visit https://groups.google.com/groups/opt_out.
