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| author | Jakob Stoklund Olesen <stoklund@2pi.dk> | 2012-02-23 01:13:32 +0000 |
|---|---|---|
| committer | Jakob Stoklund Olesen <stoklund@2pi.dk> | 2012-02-23 01:13:32 +0000 |
| commit | cf14613455bc32b6a17821808595263e061335bc (patch) | |
| tree | 6759db054bebc784b7000772b7f09d7cb8337e17 /include | |
| parent | c9addc40101d28766438c8b0cfad1a78fcd6fbf9 (diff) | |
| download | llvm-cf14613455bc32b6a17821808595263e061335bc.tar.gz llvm-cf14613455bc32b6a17821808595263e061335bc.tar.bz2 llvm-cf14613455bc32b6a17821808595263e061335bc.tar.xz | |
Track reserved registers separately from RegsAvailable.
The bulk masking operations from register mask operands don't account
for reserved registers.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151222 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'include')
| -rw-r--r-- | include/llvm/CodeGen/RegisterScavenging.h | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/include/llvm/CodeGen/RegisterScavenging.h b/include/llvm/CodeGen/RegisterScavenging.h index 8f90ca796b..3986a8dd7d 100644 --- a/include/llvm/CodeGen/RegisterScavenging.h +++ b/include/llvm/CodeGen/RegisterScavenging.h @@ -134,8 +134,9 @@ private: /// isUsed / isUnused - Test if a register is currently being used. /// - bool isUsed(unsigned Reg) const { return !RegsAvailable.test(Reg); } - bool isUnused(unsigned Reg) const { return RegsAvailable.test(Reg); } + bool isUsed(unsigned Reg) const { + return !RegsAvailable.test(Reg) || ReservedRegs.test(Reg); + } /// isAliasUsed - Is Reg or an alias currently in use? bool isAliasUsed(unsigned Reg) const; |