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don't use x18 on arm64, where it's a reserved 'platform' register

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This commit is contained in:
Joshua Warner 2015-05-01 13:44:44 -06:00
parent 1290fda6a8
commit fa63bce14d
1 changed files with 3 additions and 0 deletions
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3
src/codegen/target/arm/assembler.cpp
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@ -237,6 +237,9 @@ class MyArchitecture : public Architecture {
case ThreadRegister.index(): case ThreadRegister.index():
case ProgramCounter.index(): case ProgramCounter.index():
return true; return true;
case 18:
// x18 is a reserved platform register on arm64
return TargetBytesPerWord == 8;
default: default:
return false; return false;