Konstantin Zhuravlyov b34a186175 [DAGCombiner] Do not remove the load of stored values when optimizations are disabled ...

This combiner breaks debug experience and should not be run when optimizations are disabled.

For example:
  int main() {
    int j = 0;
    j += 2;
    if (j == 2)
      return 0;
    return 5;
  }
When debugging this code compiled in /O0, it should be valid to break at line "j+=2;" and edit the value of j. It should change the return value of the function.

Differential Revision: https://reviews.llvm.org/D19268


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@284014 91177308-0d34-0410-b5e6-96231b3b80d8

2016-10-12 13:44:24 +00:00

..

AArch64

[AArch64][InstructionSelector] Fix unintended test changes in r283973.

2016-10-12 04:12:44 +00:00

AMDGPU

AMDGPU/SI: Update ISA version numbers for Tonga and Polaris10/11.

2016-10-11 16:00:47 +00:00

ARM

[DAGCombiner] Do not remove the load of stored values when optimizations are disabled

2016-10-12 13:44:24 +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."

2016-09-28 16:37:50 +00:00

Generic

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

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

Hexagon

[Hexagon] Avoid replacing full regs with subregisters in tied operands

2016-10-06 16:18:04 +00:00

Inputs

[PR27284] Reverse the ownership between DICompileUnit and DISubprogram.

2016-04-15 15:57:41 +00:00

Lanai

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

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

Mips

[mips][fastisel] Consider soft-float an unsupported floating point mode

2016-10-04 10:35:07 +00:00

MIR

Add AArch64 unit tests

2016-10-12 09:00:44 +00:00

MSP430

[SelectionDAGBuilder] Support llvm.flt.rounds on targets where i32 is not legal

2016-10-10 20:45:15 +00:00

NVPTX

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

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

PowerPC

[PPCMIPeephole] Fix splat elimination

2016-10-12 00:48:25 +00:00

SPARC

This pass, fixing an erratum in some LEON 2 processors ensures that the SDIV instruction is not issued, but replaced by SDIVcc instead, which does not exhibit the error. Unit test included.

2016-10-10 08:53:06 +00:00

SystemZ

[DAGCombiner] Do not remove the load of stored values when optimizations are disabled

2016-10-12 13:44:24 +00:00

Thumb

Re-land "[Thumb] Save/restore high registers in Thumb1 pro/epilogues"

2016-10-11 21:14:03 +00:00

Thumb2

Re-land "[Thumb] Save/restore high registers in Thumb1 pro/epilogues"

2016-10-11 21:14:03 +00:00

WebAssembly

Codegen: Tail-duplicate during placement.

2016-10-11 20:36:43 +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

[DAGCombiner] Do not remove the load of stored values when optimizations are disabled

2016-10-12 13:44:24 +00:00

XCore

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

2016-09-28 16:37:50 +00:00