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Support segmented stacks on mac.

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This uses TLS slot 90, which actually belongs to JavaScriptCore. We only support
frames with static size
Patch by Brian Anderson.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147960 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Rafael Espindola
2012-01-11 19:00:37 +00:00
parent 7692ce9e81
commit 2028b793e1
3 changed files with 273 additions and 92 deletions
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lib/Target/X86/X86TargetMachine.cpp
-3
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@@ -102,9 +102,6 @@ X86TargetMachine::X86TargetMachine(const Target &T, StringRef TT,
// default to hard float ABI
if (Options.FloatABIType == FloatABI::Default)
this->Options.FloatABIType = FloatABI::Hard;
if (Options.EnableSegmentedStacks && !Subtarget.isTargetELF())
report_fatal_error("Segmented stacks are only implemented on ELF.");
}
//===----------------------------------------------------------------------===//