Oleg Ranevskyy 6389dd9fa2 [ARM CodeGen] @llvm.debugtrap call may be removed when restoring callee saved registers ...

Summary:
When ARMFrameLowering::emitPopInst generates a "pop" instruction to restore the callee saved registers, it checks if the LR register is among them. If so, the function may decide to remove the basic block's terminator and replace it with a "pop" to the PC register instead of LR.

This leads to a problem when the block's terminator is preceded by a "llvm.debugtrap" call. The MI iterator points to the trap in such a case, which is also a terminator. If the function decides to restore LR to PC, it erroneously removes the trap.

Reviewers: asl, rengolin

Subscribers: aemerson, jfb, rengolin, dschuff, llvm-commits

Differential Revision: http://reviews.llvm.org/D13672

llvm-svn: 251123

2015-10-23 17:17:59 +00:00

clang

Module Debugging: Emit module debug info for types inside of Objective-C

2015-10-23 17:02:22 +00:00

clang-tools-extra

Make isExpensiveToCopy() tri-state.

2015-10-23 10:00:50 +00:00

compiler-rt

[msan] Re-submit test for process_vm_readv.

2015-10-23 00:00:22 +00:00

debuginfo-tests

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libclc

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libcxx

Use proper output directory when naminging the libc++ output

2015-10-23 07:04:24 +00:00

libcxxabi

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libunwind

Add FreeBSD _Unwind_Ptr typedef

2015-10-16 19:40:09 +00:00

lld

ELF2: Do not apply 0xffff bit mask to uint16_t return values. NFC.

2015-10-23 16:54:58 +00:00

lldb

Add from __future__ import print_function everywhere.

2015-10-23 17:04:29 +00:00

llgo

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llvm

[ARM CodeGen] @llvm.debugtrap call may be removed when restoring callee saved registers

2015-10-23 17:17:59 +00:00

openmp

Removed zeroing th.th_task_state for master thread at start of nested parallel.

2015-10-20 19:21:04 +00:00

polly

[FIX] Do not hoist nested variant base pointers

2015-10-21 22:14:57 +00:00

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