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| author | Michael Liao <michael.liao@intel.com> | 2012-10-15 22:39:43 +0000 |
|---|---|---|
| committer | Michael Liao <michael.liao@intel.com> | 2012-10-15 22:39:43 +0000 |
| commit | 97bf363a9e8098c378924d61e30d8a3f390c1da1 (patch) | |
| tree | 025430f7c0b7ea07c50f2a2b5eee725b372c326d /llvm/lib/Target/X86/X86RegisterInfo.h | |
| parent | bd847cc5622cabc9abb1a59e950981cdf9418f96 (diff) | |
| download | bcm5719-llvm-97bf363a9e8098c378924d61e30d8a3f390c1da1.tar.gz bcm5719-llvm-97bf363a9e8098c378924d61e30d8a3f390c1da1.zip | |
Add __builtin_setjmp/_longjmp supprt in X86 backend
- Besides used in SjLj exception handling, __builtin_setjmp/__longjmp is also
used as a light-weight replacement of setjmp/longjmp which are used to
implementation continuation, user-level threading, and etc. The support added
in this patch ONLY addresses this usage and is NOT intended to support SjLj
exception handling as zero-cost DWARF exception handling is used by default
in X86.
llvm-svn: 165989
Diffstat (limited to 'llvm/lib/Target/X86/X86RegisterInfo.h')
| -rw-r--r-- | llvm/lib/Target/X86/X86RegisterInfo.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/llvm/lib/Target/X86/X86RegisterInfo.h b/llvm/lib/Target/X86/X86RegisterInfo.h index 0287fa22062..7932ede8dd6 100644 --- a/llvm/lib/Target/X86/X86RegisterInfo.h +++ b/llvm/lib/Target/X86/X86RegisterInfo.h @@ -100,6 +100,7 @@ public: /// callee-save registers on this target. const uint16_t *getCalleeSavedRegs(const MachineFunction* MF = 0) const; const uint32_t *getCallPreservedMask(CallingConv::ID) const; + const uint32_t *getNoPreservedMask() const; /// getReservedRegs - Returns a bitset indexed by physical register number /// indicating if a register is a special register that has particular uses and |
