Jonas Paulsson d1ec738502 Handle a COPY with undef source operand in LowerCopy() ...

Llvm-stress discovered that a COPY may end up in ExpandPostRA::LowerCopy()
with an undef source operand. It is not possible for the target to handle
this, as this flag is not passed to TII->copyPhysReg().

This patch solves this by treating such a COPY as an identity COPY.

Review: Matthias Braun
https://reviews.llvm.org/D32892

llvm-svn: 302877

2017-05-12 06:32:03 +00:00

..

AArch64

[AArch64][MachineCombine] Fold FNMUL+FSUB -> FNMADD.

2017-05-11 20:07:24 +00:00

AMDGPU

AMDGPU: Remove tfe bit from flat instruction definitions

2017-05-11 17:38:33 +00:00

ARM

[ARM][GlobalISel] Legalize narrow scalar ops by widening

2017-05-11 09:45:57 +00:00

AVR

[AVR] Reserve the Y register in all functions

2017-05-03 11:56:01 +00:00

BPF

[bpf] fix a bug which causes incorrect big endian reloc fixup

2017-05-05 18:05:00 +00:00

Generic

Add a late IR expansion pass for the experimental reduction intrinsics.

2017-05-10 09:42:49 +00:00

Hexagon

Add extra operand to CALLSEQ_START to keep frame part set up previously

2017-05-09 13:35:13 +00:00

Inputs

…

Lanai

[lanai] Add computeKnownBitsForTargetNode for Lanai.

2017-05-09 18:35:26 +00:00

Mips

Revert "[MIPS] Add support to match more patterns for DINS instruction"

2017-05-09 13:18:48 +00:00

MIR

[IfConversion] Keep the CFG updated incrementally in IfConvertTriangle

2017-05-12 06:28:58 +00:00

MSP430

[MSP430] Generate EABI-compliant libcalls

2017-05-11 19:56:14 +00:00

NVPTX

[SelectionDAG] Improve support for promotion of <1 x fX> floating point argument types (PR31088)

2017-05-02 10:33:08 +00:00

PowerPC

[PPC] Change the register constraint of the first source operand of instruction mtvsrdd to g8rc_nox0

2017-05-11 22:17:35 +00:00

SPARC

Don't emit CFI instructions at the end of a function

2017-04-24 18:45:59 +00:00

SystemZ

Handle a COPY with undef source operand in LowerCopy()

2017-05-12 06:32:03 +00:00

Thumb

[ARM] ScheduleDAGRRList::DelayForLiveRegsBottomUp must consider OptionalDefs

2017-04-23 06:58:08 +00:00

Thumb2

Add address space mangling to lifetime intrinsics

2017-04-10 20:18:21 +00:00

WebAssembly

[WebAssembly] Fix WebAssemblyOptimizeReturned after r300367

2017-04-17 21:40:28 +00:00

WinEH

Avoid infinite loops in branch folding

2016-12-12 23:05:38 +00:00

X86

[X86][AVX] Added zeroall/zeroupper scheduler tests

2017-05-11 15:02:49 +00:00

XCore

In visitSTORE, always use FindBetterChain, rather than only when UseAA is enabled.

2017-03-14 00:34:14 +00:00