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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
30 lines
654 B
YAML
30 lines
654 B
YAML
# RUN: not llc -mtriple=i686-- -run-pass liveintervals -o - %s 2>&1 | FileCheck %s
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# REQUIRES: asserts
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--- |
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define void @func() { ret void }
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...
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---
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# Liveness calculation should detect that we do not have a definition for %0
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# on all paths; In this example a def for %0 is missing when jumping from
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# bb.0 to bb.3.
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#
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# CHECK: Use of %0 does not have a corresponding definition on every path
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# CHECK: ERROR: Use not jointly dominated by defs.
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name: func
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registers:
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- { id: 0, class: gr32 }
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body: |
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bb.0:
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JG_1 %bb.2, implicit $eflags
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JMP_1 %bb.3
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bb.2:
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%0 = IMPLICIT_DEF
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JMP_1 %bb.3
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bb.3:
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$eax = COPY %0
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RETQ $eax
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...
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