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Create const ints for int8_t and int32_t in jmp assembler (making win64 build happy)

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Review URL: http://codereview.chromium.org/1637009

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@4408 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
This commit is contained in:
ricow@chromium.org 2010-04-14 08:54:08 +00:00
parent 934db0b2b3
commit 4e3fc71786
1 changed files with 6 additions and 4 deletions
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10
src/x64/assembler-x64.cc
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@ -1139,22 +1139,24 @@ void Assembler::jmp(Label* L) {
EnsureSpace ensure_space(this);
last_pc_ = pc_;
if (L->is_bound()) {
const int short_size = sizeof(int8_t);
const int long_size = sizeof(int32_t);
int offs = L->pos() - pc_offset() - 1;
ASSERT(offs <= 0);
if (is_int8(offs - sizeof(int8_t))) {
if (is_int8(offs - short_size)) {
// 1110 1011 #8-bit disp.
emit(0xEB);
emit((offs - sizeof(int8_t)) & 0xFF);
emit((offs - short_size) & 0xFF);
} else {
// 1110 1001 #32-bit disp.
emit(0xE9);
emitl(offs - sizeof(int32_t));
emitl(offs - long_size);
}
} else if (L->is_linked()) {
// 1110 1001 #32-bit disp.
emit(0xE9);
emitl(L->pos());
L->link_to(pc_offset() - sizeof(int32_t));
L->link_to(pc_offset() - long_size);
} else {
// 1110 1001 #32-bit disp.
ASSERT(L->is_unused());