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RegPressure: Fix crash on blocks with only dbg_value
authorMatt Arsenault <Matthew.Arsenault@amd.com>
Wed, 27 Mar 2019 18:14:02 +0000 (18:14 +0000)
committerMatt Arsenault <Matthew.Arsenault@amd.com>
Wed, 27 Mar 2019 18:14:02 +0000 (18:14 +0000)
commit53202c3a192df50a73067bade05cf58e6fa1e379
tree49356f4a18e95205d81892b358f9ac739d858324tree | snapshot
parenta600eb60fd49a8e1d9e229d1287e3867580168abcommit | diff
RegPressure: Fix crash on blocks with only dbg_value

If there were only dbg_values in the block, recede would hit the
beginning of the block and try to use thet dbg_value as a real
instruction.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@357105 91177308-0d34-0410-b5e6-96231b3b80d8
lib/CodeGen/RegisterPressure.cpp diff | blob | history
test/CodeGen/AMDGPU/debug-value-scheduler-crash.mir [new file with mode: 0644] blob
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