Evan Cheng ab5c703fdb Fix epilogue codegen to avoid leaving the stack pointer in an invalid ... state. Previously Thumb2 would restore sp from fp like this: mov sp, r7 sub, sp, #4 If an interrupt is taken after the 'mov' but before the 'sub', callee-saved registers might be clobbered by the interrupt handler. Instead, try restoring directly from sp: add sp, #4 Or, if necessary (with VLA, etc.) use a scratch register to compute sp and then restore it: sub.w r4, r7, #8 mov sp, r7 rdar://8465407 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119977 91177308-0d34-0410-b5e6-96231b3b80d8		2010-11-22 18:12:04 +00:00
..
Analysis	Delete unneeded ssp attributes.	2010-11-11 21:08:46 +00:00
Archive
Assembler
Bindings/Ocaml
Bitcode
BugPoint
CodeGen	Fix epilogue codegen to avoid leaving the stack pointer in an invalid	2010-11-22 18:12:04 +00:00
DebugInfo	Change CodeGen to use .loc directives. This produces a lot more readable output	2010-11-18 02:04:25 +00:00
ExecutionEngine	lli: Switch to using ParseIRFile, for consistency with other LLVM tools.	2010-11-13 00:28:01 +00:00
Feature
FrontendAda
FrontendC	Test for llvm-gcc patch 119392.	2010-11-16 21:57:15 +00:00
FrontendC++
FrontendFortran
FrontendObjC
FrontendObjC++
Integer
lib
Linker
LLVMC
MC	Add encoding for ARM "trap" instruction.	2010-11-21 11:05:29 +00:00
Other
Scripts
TableGen	Generalize tblgen's dag parsing logic to handle arbitrary expressions	2010-10-06 04:55:48 +00:00
Transforms	If a GEP index simply advances by multiples of a type of zero size,	2010-11-22 16:32:50 +00:00
Unit
Verifier
CMakeLists.txt	CMake: Add the new option "LLVM_LIT_ARGS".	2010-11-11 04:09:35 +00:00
lit.cfg
lit.site.cfg.in
Makefile
Makefile.tests
site.exp.in
TestRunner.sh