Ulrich Weigand 2677f9fdf7 [SystemZ] Do not use LOC(G) for volatile loads ...

It is not safe to use LOAD ON CONDITION to implement access to a memory
location marked "volatile", since the architecture leaves it unspecified
whether or not an access happens if the condition is false.

The current code already appears to care about that:
  def LOC  : CondUnaryRSY<"loc",  0xEBF2, nonvolatile_load, GR32, 4>;

Unfortunately, that "nonvolatile_load" operator is simply ignored
by the CondUnaryRSY class, and there was no test to catch it.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@285077 91177308-0d34-0410-b5e6-96231b3b80d8

2016-10-25 15:39:15 +00:00

..

AArch64

[llvm] Remove redundant --check-prefix=CHECK from tests

2016-10-24 18:57:55 +00:00

AMDGPU

AMDGPU: Fix Two Address problems with v_movreld

2016-10-24 14:56:02 +00:00

ARM

[llvm] Remove redundant --check-prefix=CHECK from tests

2016-10-24 18:57:55 +00:00

AVR

[RegAllocGreedy] Attempt to split unspillable live intervals

2016-10-11 01:04:36 +00:00

BPF

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

2016-10-13 20:23:25 +00:00

Generic

llc: Add -start-before/-stop-before options

2016-09-23 21:46:02 +00:00

Hexagon

[Hexagon] Handle spills of partially defined double vector registers

2016-10-21 16:38:29 +00:00

Inputs

…

Lanai

Add a REQUIRES: assert on a Lanai test that uses a -debug-only flag

2016-07-29 19:35:22 +00:00

Mips

[DAG] optimize negation of bool

2016-10-19 16:58:59 +00:00

MIR

AMDGPU/SI: Handle s_getreg hazard in GCNHazardRecognizer

2016-10-15 00:58:14 +00:00

MSP430

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

2016-10-13 20:23:25 +00:00

NVPTX

[NVPTX] Added intrinsics for atom.gen.{sys|cta}.* instructions.

2016-09-28 17:25:38 +00:00

PowerPC

[PPC] Generate positive FP zero using xor insn instead of loading from constant area

2016-10-24 17:31:09 +00:00

SPARC

Sparc: fix test.

2016-10-19 15:55:11 +00:00

SystemZ

[SystemZ] Do not use LOC(G) for volatile loads

2016-10-25 15:39:15 +00:00

Thumb

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

2016-10-13 20:23:25 +00:00

Thumb2

Revert r284580+r284917. ("Synthesize TBB/TBH instructions")

2016-10-24 17:20:50 +00:00

WebAssembly

[WebAssembly] Fix for 0xc call_indirect changes

2016-10-21 16:38:07 +00:00

WinEH

Revert EH-specific checks in BranchFolding that were causing blow ups in compile time.

2016-07-27 17:55:33 +00:00

X86

[X86][SSE] Add support for (V)PMOVSX* constant folding

2016-10-25 14:29:25 +00:00

XCore

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

2016-10-13 20:23:25 +00:00