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| author | Jakob Stoklund Olesen <stoklund@2pi.dk> | 2011-03-31 17:55:25 +0000 |
|---|---|---|
| committer | Jakob Stoklund Olesen <stoklund@2pi.dk> | 2011-03-31 17:55:25 +0000 |
| commit | 280ea1a7466751c6d27ff343072c65e59a950053 (patch) | |
| tree | 0e34572eb68616124c6cfc322fd93d89a024f0b8 /test/CodeGen | |
| parent | 8901e6ff3da1c1a68ee5c1c24f21e8572ceb57b6 (diff) | |
| download | external_llvm-280ea1a7466751c6d27ff343072c65e59a950053.zip external_llvm-280ea1a7466751c6d27ff343072c65e59a950053.tar.gz external_llvm-280ea1a7466751c6d27ff343072c65e59a950053.tar.bz2 | |
Don't completely eliminate identity copies that also modify super register liveness.
Turn them into noop KILL instructions instead. This lets the scavenger know when
super-registers are killed and defined.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128645 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/CodeGen')
| -rw-r--r-- | test/CodeGen/Blackfin/2009-08-04-LowerExtract-Live.ll | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/test/CodeGen/Blackfin/2009-08-04-LowerExtract-Live.ll b/test/CodeGen/Blackfin/2009-08-04-LowerExtract-Live.ll index 3ee5e8d..50fccb4 100644 --- a/test/CodeGen/Blackfin/2009-08-04-LowerExtract-Live.ll +++ b/test/CodeGen/Blackfin/2009-08-04-LowerExtract-Live.ll @@ -1,4 +1,5 @@ ; RUN: llc < %s -march=bfin -join-liveintervals=0 -verify-machineinstrs +; RUN: llc < %s -march=bfin -join-liveintervals=0 -verify-machineinstrs -regalloc=greedy ; Provoke an error in LowerSubregsPass::LowerExtract where the live range of a ; super-register is illegally extended. |