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| author | Guozhi Wei <carrot@google.com> | 2018-01-16 19:28:50 +0000 |
|---|---|---|
| committer | Guozhi Wei <carrot@google.com> | 2018-01-16 19:28:50 +0000 |
| commit | e6fb4e1f8ab3c76cbded23fbebdaec969205031f (patch) | |
| tree | 4705f366087fb5c15e2c6e5aea66e1c48bb53608 /clang/lib/CodeGen/CodeGenModule.cpp | |
| parent | 62003fbb024862a67837f963c2ac157850848af7 (diff) | |
| download | bcm5719-llvm-e6fb4e1f8ab3c76cbded23fbebdaec969205031f.tar.gz bcm5719-llvm-e6fb4e1f8ab3c76cbded23fbebdaec969205031f.zip | |
[PPC] Add a new register XER aliased to CARRY
When "xer" is specified as clobbered register in inline assembler, clang can accept it, but llvm simply ignore it when lowered to machine instructions. It may cause problems later in scheduler.
This patch adds a new register XER aliased to CARRY, and adds it to register class CARRYRC. Now PPCTargetLowering::getRegForInlineAsmConstraint can return correct register number for inline asm constraint "{xer}", and scheduler behave correctly.
Differential Revision: https://reviews.llvm.org/D41967
llvm-svn: 322591
Diffstat (limited to 'clang/lib/CodeGen/CodeGenModule.cpp')
0 files changed, 0 insertions, 0 deletions
