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[Hexagon] Fix post-ra expansion of PS_wselect

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llvm-svn: 348655
This commit is contained in:
Krzysztof Parzyszek 2018-12-07 22:00:53 +00:00
parent 764c8768bd
commit 9407b60244
2 changed files with 13 additions and 1 deletions
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1
lib/Target/Hexagon/HexagonInstrInfo.cpp
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@ -1293,7 +1293,6 @@ bool HexagonInstrInfo::expandPostRAPseudo(MachineInstr &MI) const {
auto T = BuildMI(MBB, MI, DL, get(Hexagon::V6_vccombine))
.add(Op0)
.addReg(PReg, S)
.add(Op1)
.addReg(SrcHi)
.addReg(SrcLo);
if (IsDestLive)

13
test/CodeGen/Hexagon/expand-wselect.mir Normal file
View File

@ -0,0 +1,13 @@
# RUN: llc -march=hexagon -run-pass postrapseudos %s -o - | FileCheck %s
# Check that this doesn't crash.
# CHECK: $w2 = V6_vccombine $p0, $v1, $v0
# CHECK: $w2 = V6_vnccombine killed $p0, $v3, $v2, implicit $w2
name: fred
tracksRegLiveness: true
body: |
bb.0:
liveins: $p0, $w0, $w1
$w2 = PS_wselect killed $p0, killed $w0, killed $w1
---