Don't break strict aliasing.

llvm-svn: 52026
This commit is contained in:
Evan Cheng 2008-06-05 22:59:21 +00:00
parent df5e7efded
commit badbe3e3fa

View File

@ -396,8 +396,8 @@ void *X86JITInfo::emitGlobalValueLazyPtr(const GlobalValue* GV, void *ptr,
MachineCodeEmitter &MCE) {
#if defined (X86_64_JIT)
MCE.startFunctionStub(GV, 8, 8);
MCE.emitWordLE(((unsigned *)&ptr)[0]);
MCE.emitWordLE(((unsigned *)&ptr)[1]);
MCE.emitWordLE((unsigned)(intptr_t)ptr);
MCE.emitWordLE((unsigned)(((intptr_t)ptr) >> 32));
#else
MCE.startFunctionStub(GV, 4, 4);
MCE.emitWordLE((intptr_t)ptr);
@ -420,8 +420,8 @@ void *X86JITInfo::emitFunctionStub(const Function* F, void *Fn,
MCE.startFunctionStub(F, 13, 4);
MCE.emitByte(0x49); // REX prefix
MCE.emitByte(0xB8+2); // movabsq r10
MCE.emitWordLE(((unsigned *)&Fn)[0]);
MCE.emitWordLE(((unsigned *)&Fn)[1]);
MCE.emitWordLE((unsigned)(intptr_t)Fn);
MCE.emitWordLE((unsigned)(((intptr_t)Fn) >> 32));
MCE.emitByte(0x41); // REX prefix
MCE.emitByte(0xFF); // jmpq *r10
MCE.emitByte(2 | (4 << 3) | (3 << 6));
@ -437,8 +437,8 @@ void *X86JITInfo::emitFunctionStub(const Function* F, void *Fn,
MCE.startFunctionStub(F, 14, 4);
MCE.emitByte(0x49); // REX prefix
MCE.emitByte(0xB8+2); // movabsq r10
MCE.emitWordLE(((unsigned *)&Fn)[0]);
MCE.emitWordLE(((unsigned *)&Fn)[1]);
MCE.emitWordLE((unsigned)(intptr_t)Fn);
MCE.emitWordLE((unsigned)(((intptr_t)Fn) >> 32));
MCE.emitByte(0x41); // REX prefix
MCE.emitByte(0xFF); // callq *r10
MCE.emitByte(2 | (2 << 3) | (3 << 6));