6502/llvm-6502
1
0
Fork 0
mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2025-07-24 22:24:54 +00:00
Code Issues Projects Releases Wiki Activity

[WinEH] Create an llvm.x86.seh.exceptioninfo intrinsic

Browse Source 
This intrinsic is like framerecover plus a load. It recovers the EH
registration stack allocation from the parent frame and loads the
exception information field out of it, giving back a pointer to an
EXCEPTION_POINTERS struct. It's designed for clang to use in SEH filter
expressions instead of accessing the EXCEPTION_POINTERS parameter that
is available on x64.

This required a minor change to MC to allow defining a label variable to
another absolute framerecover label variable.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239567 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Reid Kleckner
2015-06-11 22:32:23 +00:00
parent 5e9819c5bd
commit 3e16bd3aaf
10 changed files with 176 additions and 105 deletions
Download Patch File Download Diff File Expand all files Collapse all files

9
lib/MC/WinCOFFObjectWriter.cpp
View File

@@ -526,13 +526,12 @@ bool WinCOFFObjectWriter::ExportSymbol(const MCSymbol &Symbol,
if (!Symbol.isTemporary())
return true;
// Absolute temporary labels are never visible.
if (!Symbol.isInSection())
// Temporary variable symbols are invisible.
if (Symbol.isVariable())
return false;
// For now, all non-variable symbols are exported,
// the linker will sort the rest out for us.
return !Symbol.isVariable();
// Absolute temporary labels are never visible.
return !Symbol.isAbsolute();
}
bool WinCOFFObjectWriter::IsPhysicalSection(COFFSection *S) {