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Long live the exception handling!

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This patch fills the last necessary bits to enable exceptions
handling in LLVM. Currently only on x86-32/linux.

In fact, this patch adds necessary intrinsics (and their lowering) which
represent really weird target-specific gcc builtins used inside unwinder.

After corresponding llvm-gcc patch will land (easy) exceptions should be
more or less workable. However, exceptions handling support should not be 
thought as 'finished': I expect many small and not so small glitches
everywhere.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39855 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Anton Korobeynikov
2007-07-14 14:06:15 +00:00
parent a73d11efd4
commit 2365f51ed0
25 changed files with 257 additions and 35 deletions
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5
lib/Target/X86/X86TargetAsmInfo.cpp
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@@ -124,8 +124,9 @@ X86TargetAsmInfo::X86TargetAsmInfo(const X86TargetMachine &TM) {
DwarfARangesSection = "\t.section\t.debug_aranges,\"\",@progbits";
DwarfRangesSection = "\t.section\t.debug_ranges,\"\",@progbits";
DwarfMacInfoSection = "\t.section\t.debug_macinfo,\"\",@progbits";
SupportsExceptionHandling = true;
if (!Subtarget->is64Bit())
SupportsExceptionHandling = true;
DwarfEHFrameSection = "\t.section\t.eh_frame,\"aw\",@progbits";
DwarfExceptionSection = "\t.section\t.gcc_except_table,\"a\",@progbits";
break;