6502/llvm-6502
1
0
Fork 0
mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2025-06-13 22:24:07 +00:00
Code Issues Projects Releases Wiki Activity

Move the check whether it's worth remating to caller.

Browse Source 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55434 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Evan Cheng
2008-08-27 20:58:54 +00:00
parent 18bb2788a0
commit 8763c1c544
2 changed files with 2 additions and 3 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
lib/CodeGen/MachineInstr.cpp
View File

@ -714,8 +714,6 @@ bool MachineInstr::isSafeToMove(const TargetInstrInfo *TII, bool &SawStore) {
/// isSafeToReMat - Return true if it's safe to rematerialize the specified
/// instruction which defined the specified register instead of copying it.
bool MachineInstr::isSafeToReMat(const TargetInstrInfo *TII, unsigned DstReg) {
if (!TID->isAsCheapAsAMove())
return false;
bool SawStore = false;
if (!isSafeToMove(TII, SawStore))
return false;
@ -726,7 +724,7 @@ bool MachineInstr::isSafeToReMat(const TargetInstrInfo *TII, unsigned DstReg) {
// FIXME: For now, do not remat any instruction with register operands.
// Later on, we can loosen the restriction is the register operands have
// not been modified between the def and use. Note, this is different from
// MachineSink because the code in no longer in two-address form (at least
// MachineSink because the code is no longer in two-address form (at least
// partially).
if (MO.isUse())
return false;