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# RUN: not llc -march=x86 -run-pass liveintervals -o - %s 2>&1 | FileCheck %s
# REQUIRES: asserts
--- |
define void @func() { ret void }
...
---
# Liveness calculation should detect that we do not have a definition for vreg0
# on all paths; In this example a def for vreg0 is missing when jumping from
# bb.0 to bb.3.
#
# CHECK: Use of %vreg0 does not have a corresponding definition on every path
# CHECK: ERROR: Use not jointly dominated by defs.
name: func
registers:
- { id: 0, class: gr32 }
body: |
bb.0:
successors: %bb.2, %bb.3
JG_1 %bb.2, implicit %eflags
JMP_1 %bb.3
bb.2:
successors: %bb.3
%0 = IMPLICIT_DEF
JMP_1 %bb.3
bb.3:
%eax = COPY %0
RETQ %eax
...
|
