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llvm-mirror/test/CodeGen/Hexagon/ifcvt-common-kill.mir
Puyan Lotfi d4c615be8c Followup on Proposal to move MIR physical register namespace to '$' sigil.
Discussed here:

http://lists.llvm.org/pipermail/llvm-dev/2018-January/120320.html

In preparation for adding support for named vregs we are changing the sigil for
physical registers in MIR to '$' from '%'. This will prevent name clashes of
named physical register with named vregs.

llvm-svn: 323922
2018-01-31 22:04:26 +00:00

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# RUN: llc -march=hexagon -run-pass if-converter -o - %s -verify-machineinstrs | FileCheck %s
# CHECK: $r26 = A2_tfr $r1
# CHECK: S2_pstorerhf_io undef $p0, undef $r0, 0, killed $r1
---
name: foo
tracksRegLiveness: true
body: |
bb.0:
successors: %bb.1, %bb.2
liveins: $r0, $r1
J2_jumpf undef $p0, %bb.2, implicit-def $pc
bb.1:
successors: %bb.3
liveins: $r1
; This <kill> flag should be cleared. It didn't use to be, because
; this instruction is treated as a duplicate of the corresponding
; instruction from the "false" block bb.2. Clearing of the <kill>
; flags was limited to the non-common part of the "true" block.
$r26 = A2_tfr killed $r1
J2_jump %bb.3, implicit-def $pc
bb.2:
successors: %bb.3
liveins: $r1
$r26 = A2_tfr $r1
S2_storerh_io undef $r0, 0, killed $r1
J2_jump %bb.3, implicit-def $pc
bb.3:
liveins: $r26
...