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Add register Mips::GP to the list of reserved registers if target is bare-metal

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to prevent it from being clobbered. mips uses $gp to access small data section.

This bug was originally reported by Carl Norum.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162340 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Akira Hatanaka
2012-08-22 03:18:13 +00:00
parent 6522a9e04b
commit e7338cd550
7 changed files with 34 additions and 7 deletions
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2
lib/Target/Mips/MipsTargetMachine.cpp
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@ -42,7 +42,7 @@ MipsTargetMachine(const Target &T, StringRef TT,
CodeGenOpt::Level OL,
bool isLittle)
: LLVMTargetMachine(T, TT, CPU, FS, Options, RM, CM, OL),
Subtarget(TT, CPU, FS, isLittle),
Subtarget(TT, CPU, FS, isLittle, RM),
DataLayout(isLittle ?
(Subtarget.isABI_N64() ?
"e-p:64:64:64-i8:8:32-i16:16:32-i64:64:64-f128:128:128-n32" :