Stanislav Mekhanoshin 6071e1aa58 [AMDGPU] Simplify negated condition
Optimize sequence:

  %sel = V_CNDMASK_B32_e64 0, 1, %cc
  %cmp = V_CMP_NE_U32 1, %1
  $vcc = S_AND_B64 $exec, %cmp
  S_CBRANCH_VCC[N]Z
=>
  $vcc = S_ANDN2_B64 $exec, %cc
  S_CBRANCH_VCC[N]Z

It is the negation pattern inserted by DAGCombiner::visitBRCOND() in the
rebuildSetCC().

Differential Revision: https://reviews.llvm.org/D55402

llvm-svn: 349003
2018-12-13 03:17:40 +00:00
2018-11-27 16:07:21 +00:00
2018-06-18 12:22:17 +00:00
2018-12-13 03:17:40 +00:00
2018-10-19 00:03:01 +00:00

The LLVM Compiler Infrastructure

This directory and its subdirectories contain source code for LLVM, a toolkit for the construction of highly optimized compilers, optimizers, and runtime environments.

Description
The LLVM Project is a collection of modular and reusable compiler and toolchain technologies.
Readme 5.7 GiB
Languages
LLVM 42.4%
C++ 30.1%
C 12.8%
Assembly 9.8%
MLIR 1.6%
Other 2.9%