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d4c615be8c
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
56 lines
1.4 KiB
YAML
56 lines
1.4 KiB
YAML
# RUN: llc -march=hexagon -verify-machineinstrs -run-pass branch-folder -o - %s | FileCheck %s
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# CHECK-LABEL: name: fred
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--- |
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define void @fred() { ret void }
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...
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---
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name: fred
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tracksRegLiveness: true
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body: |
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bb.0:
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liveins: $p0:0x1, $p2, $r0
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successors: %bb.1, %bb.2
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J2_jumpt killed $p2, %bb.1, implicit-def $pc
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J2_jump %bb.2, implicit-def $pc
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bb.1:
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liveins: $p0:0x1, $r0, $r19
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successors: %bb.3
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$r2 = A2_tfrsi 4
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$r1 = COPY $r19
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$r0 = S2_asl_r_r killed $r0, killed $r2
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$r0 = A2_asrh killed $r0
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J2_jump %bb.3, implicit-def $pc
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bb.2:
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liveins: $p0:0x1, $r0, $r18
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successors: %bb.3
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$r2 = A2_tfrsi 5
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$r1 = L2_loadrh_io $r18, 0
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$r0 = S2_asl_r_r killed $r0, killed $r2
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$r0 = A2_asrh killed $r0
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bb.3:
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; A live-in register without subregs, but with a lane mask that is not ~0
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; is not recognized by LivePhysRegs. Branch folding exposes this problem
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; (through tail merging).
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;
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; CHECK: bb.3:
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; CHECK: liveins:{{.*}}$p0
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; CHECK: $r0 = S2_asl_r_r killed $r0, killed $r2
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; CHECK: $r0 = A2_asrh killed $r0
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; CHECK: $r0 = C2_cmoveit killed $p0, 1
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; CHECK: J2_jumpr $r31, implicit-def $pc, implicit $r0
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;
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liveins: $p0:0x1
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$r0 = C2_cmoveit killed $p0, 1
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J2_jumpr $r31, implicit-def $pc, implicit $r0
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...
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