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(parent: 0b48e9a) | patch
AArch64: Use CMP;CCMP sequences for and/or/setcc trees.
authorMatthias Braun <matze@braunis.de>
Mon, 1 Jun 2015 22:31:17 +0000 (22:31 +0000)
committerMatthias Braun <matze@braunis.de>
Mon, 1 Jun 2015 22:31:17 +0000 (22:31 +0000)
commitfe1391f07dc7010ce8429316897f3396b0c2f2de
tree30c427ae8661be4fb93b46bf9acb1227ed59c2dftree | snapshot
parent0b48e9a83c0dc2ba7b471ba54b92370e9dce34c8commit | diff
AArch64: Use CMP;CCMP sequences for and/or/setcc trees.

Previously CCMP/FCCMP instructions were only used by the
AArch64ConditionalCompares pass for control flow. This patch uses them
for SELECT like instructions as well by matching patterns in ISelLowering.

PR20927, rdar://18326194

Differential Revision: http://reviews.llvm.org/D8232

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@238793 91177308-0d34-0410-b5e6-96231b3b80d8
lib/Target/AArch64/AArch64ISelLowering.cpp diff | blob | history
lib/Target/AArch64/AArch64ISelLowering.h diff | blob | history
lib/Target/AArch64/AArch64InstrFormats.td diff | blob | history
lib/Target/AArch64/AArch64InstrInfo.td diff | blob | history
test/CodeGen/AArch64/arm64-ccmp.ll diff | blob | history
C/C++ LLVM-based compilers that forbids OOTA behaviors