After Jakob's r147938 exception handling on i386 was completely broken.
Restore the (obviously wrong) behavior from before r147938 without relying on
undefined behavior. Add a fat FIXME note.
This should fix nightly tester failures.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148030 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/X86/X86FrameLowering.cpp b/lib/Target/X86/X86FrameLowering.cpp
index 4cda76c..c2f2c1f 100644
--- a/lib/Target/X86/X86FrameLowering.cpp
+++ b/lib/Target/X86/X86FrameLowering.cpp
@@ -455,6 +455,13 @@
};
const unsigned *CURegs = (Is64Bit ? CU64BitRegs : CU32BitRegs);
+ // FIXME: The code below is WRONG and breaks tests on i386, see
+ // SingleSource/Regression/C++/EH/ctor_dtor_count.exec
+ // SingleSource/Regression/C++/EH/exception_spec_test.exec
+ // SingleSource/Regression/C++/EH/function_try_block.exec
+ // SingleSource/Regression/C++/EH/throw_rethrow_test.exec
+ return ~0U;
+
// Encode the registers in the order they were saved, 3-bits per register. The
// registers are numbered from 1 to 6.
uint32_t RegEnc = 0;