Simon Pilgrim bb18722701 [X86] Replace custom scalar integer absolute matching with ISD::ABS lowering. ...

x86 has its own copy of integer absolute pattern matching to combine directly to a SUB+CMOV.

This patch removes the x86 combine and adds custom lowering support for ISD::ABS instead, allowing us to use the DAGCombiner version.

Additional test cases are already covered by iabs.ll (rL315706 and rL315711).

Differential Revision: https://reviews.llvm.org/D38895

llvm-svn: 316162

2017-10-19 15:02:24 +00:00

..

AArch64

GISel: Canonicalize select tests using update_mir_test_checks

2017-10-18 23:33:31 +00:00

AMDGPU

Canonicalize a large number of mir tests using update_mir_test_checks

2017-10-18 23:18:12 +00:00

ARC

…

ARM

[ARM GlobalISel] Fix liveins in test. NFC

2017-10-19 09:28:19 +00:00

AVR

[AVR] Fix the select_mbb_placement_bug.ll test

2017-10-18 20:04:57 +00:00

BPF

bpf: fix bug on silently truncating 64-bit immediate

2017-10-16 04:14:53 +00:00

Generic

[ARM/AARCH64] Make test MachineBranchProb.ll more robust and re-enable for ARM/AArch64

2017-10-05 18:33:34 +00:00

Hexagon

[Hexagon] New HVX target features.

2017-10-18 18:07:07 +00:00

Inputs

…

Lanai

…

Mips

[mips] Fix analyzeBranch to handle debug data

2017-10-18 14:35:29 +00:00

MIR

Canonicalize a large number of mir tests using update_mir_test_checks

2017-10-18 23:18:12 +00:00

MSP430

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Nios2

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NVPTX

[NVPTX] Implemented wmma intrinsics and instructions.

2017-10-12 18:27:55 +00:00

PowerPC

[PowerPC] Use helper functions to check sign-/zero-extended value

2017-10-18 10:31:19 +00:00

SPARC

Revert "Re-enable "[MachineCopyPropagation] Extend pass to do COPY source forwarding""

2017-10-03 16:59:13 +00:00

SystemZ

[SystemZ] Enable machine scheduler.

2017-10-06 13:59:28 +00:00

Thumb

Revert "Re-enable "[MachineCopyPropagation] Extend pass to do COPY source forwarding""

2017-10-03 16:59:13 +00:00

Thumb2

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WebAssembly

[WebAssembly] Narrow the scope of WebAssemblyFixFunctionBitcasts

2017-10-10 16:20:18 +00:00

WinEH

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X86

[X86] Replace custom scalar integer absolute matching with ISD::ABS lowering.

2017-10-19 15:02:24 +00:00

XCore

[MC] Suppress .Lcfi labels when emitting textual assembly

2017-10-10 00:57:36 +00:00