[llvm-commits] [llvm] r144636 - /llvm/trunk/lib/CodeGen/ExecutionDepsFix.cpp
Jakob Stoklund Olesen
stoklund at 2pi.dk
Tue Nov 15 00:20:43 PST 2011
Author: stoklund
Date: Tue Nov 15 02:20:43 2011
New Revision: 144636
URL: http://llvm.org/viewvc/llvm-project?rev=144636&view=rev
Log:
Check all overlaps when looking for used registers.
A function using any RC alias is enough to enable the ExeDepsFix pass.
Modified:
llvm/trunk/lib/CodeGen/ExecutionDepsFix.cpp
Modified: llvm/trunk/lib/CodeGen/ExecutionDepsFix.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/CodeGen/ExecutionDepsFix.cpp?rev=144636&r1=144635&r2=144636&view=diff
==============================================================================
--- llvm/trunk/lib/CodeGen/ExecutionDepsFix.cpp (original)
+++ llvm/trunk/lib/CodeGen/ExecutionDepsFix.cpp Tue Nov 15 02:20:43 2011
@@ -650,10 +650,11 @@
bool anyregs = false;
for (TargetRegisterClass::const_iterator I = RC->begin(), E = RC->end();
I != E; ++I)
- if (MF->getRegInfo().isPhysRegUsed(*I)) {
- anyregs = true;
- break;
- }
+ for (const unsigned *AI = TRI->getOverlaps(*I); *AI; ++AI)
+ if (MF->getRegInfo().isPhysRegUsed(*AI)) {
+ anyregs = true;
+ break;
+ }
if (!anyregs) return false;
// Initialize the AliasMap on the first use.
More information about the llvm-commits
mailing list