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| author | Dan Gohman <gohman@apple.com> | 2010-07-10 09:00:22 +0000 |
|---|---|---|
| committer | Dan Gohman <gohman@apple.com> | 2010-07-10 09:00:22 +0000 |
| commit | 84023e0fbefc406a4c611d3d64a10df5d3a97dd7 (patch) | |
| tree | 8f47ad9a2c30661cf7b3e3f5bbe5fe195a8a44f8 /lib/Target/X86/X86TargetMachine.cpp | |
| parent | d737fcafc4cedcbe798930d96203a9e22c1e6e68 (diff) | |
| download | external_llvm-84023e0fbefc406a4c611d3d64a10df5d3a97dd7.zip external_llvm-84023e0fbefc406a4c611d3d64a10df5d3a97dd7.tar.gz external_llvm-84023e0fbefc406a4c611d3d64a10df5d3a97dd7.tar.bz2 | |
Reapply bottom-up fast-isel, with several fixes for x86-32:
- Check getBytesToPopOnReturn().
- Eschew ST0 and ST1 for return values.
- Fix the PIC base register initialization so that it doesn't ever
fail to end up the top of the entry block.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108039 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Target/X86/X86TargetMachine.cpp')
| -rw-r--r-- | lib/Target/X86/X86TargetMachine.cpp | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/lib/Target/X86/X86TargetMachine.cpp b/lib/Target/X86/X86TargetMachine.cpp index a0d7cf6..df00d3f 100644 --- a/lib/Target/X86/X86TargetMachine.cpp +++ b/lib/Target/X86/X86TargetMachine.cpp @@ -173,6 +173,10 @@ bool X86TargetMachine::addInstSelector(PassManagerBase &PM, // Install an instruction selector. PM.add(createX86ISelDag(*this, OptLevel)); + // For 32-bit, prepend instructions to set the "global base reg" for PIC. + if (!Subtarget.is64Bit()) + PM.add(createGlobalBaseRegPass()); + return false; } |