[PATCH] D52985: [mips][micromips] Fix how values in .gcc_except_table are calculated
Aleksandar Beserminji via Phabricator via llvm-commits
llvm-commits at lists.llvm.org
Mon Oct 8 07:57:29 PDT 2018
abeserminji created this revision.
abeserminji added reviewers: petarj, atanasyan, resistor, ddunbar.
Herald added subscribers: jrtc27, arichardson, sdardis.
When a landing pad is calculated in a program that is compiled for micromips,
it will point to an even address. Such an error will cause a segmentation fault,
as the instructions in micromips are aligned on odd addresses.
This patch sets the last bit of the offset where a landing pad is, to 1, which will
effectively be an odd address and point to the instruction exactly.
Repository:
rL LLVM
https://reviews.llvm.org/D52985
Files:
include/llvm/MC/MCAsmBackend.h
lib/MC/MCExpr.cpp
lib/Target/Mips/MCTargetDesc/MipsAsmBackend.cpp
lib/Target/Mips/MCTargetDesc/MipsAsmBackend.h
test/CodeGen/Mips/micromips-gcc-except-table.ll
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