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| author | Jakob Stoklund Olesen <stoklund@2pi.dk> | 2011-11-15 08:20:43 +0000 |
|---|---|---|
| committer | Jakob Stoklund Olesen <stoklund@2pi.dk> | 2011-11-15 08:20:43 +0000 |
| commit | e14ef7e6f8becbccf80762eb596f545a972ba6fb (patch) | |
| tree | 61c8d499f0bb9aa28ff70c906f06867e4ef5c3ab /llvm/lib/CodeGen | |
| parent | ab9ebd35212f032b7eacae27c8ff676671c8b660 (diff) | |
| download | bcm5719-llvm-e14ef7e6f8becbccf80762eb596f545a972ba6fb.tar.gz bcm5719-llvm-e14ef7e6f8becbccf80762eb596f545a972ba6fb.zip | |
Check all overlaps when looking for used registers.
A function using any RC alias is enough to enable the ExeDepsFix pass.
llvm-svn: 144636
Diffstat (limited to 'llvm/lib/CodeGen')
| -rw-r--r-- | llvm/lib/CodeGen/ExecutionDepsFix.cpp | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/llvm/lib/CodeGen/ExecutionDepsFix.cpp b/llvm/lib/CodeGen/ExecutionDepsFix.cpp index 050edce2ec8..16a8f921b3d 100644 --- a/llvm/lib/CodeGen/ExecutionDepsFix.cpp +++ b/llvm/lib/CodeGen/ExecutionDepsFix.cpp @@ -650,10 +650,11 @@ bool ExeDepsFix::runOnMachineFunction(MachineFunction &mf) { 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. |
