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authorKrzysztof Parzyszek <kparzysz@codeaurora.org>2016-08-19 22:57:23 +0000
committerKrzysztof Parzyszek <kparzysz@codeaurora.org>2016-08-19 22:57:23 +0000
commitd95d100c285f7a0eb54845b1c4eedcde8aa95705 (patch)
tree2b57dec4c8f20b6f0418fef91204c73919f194c0
parent2ce3d94a01f89c8457194f5e05633983d472197e (diff)
downloadbcm5719-llvm-d95d100c285f7a0eb54845b1c4eedcde8aa95705.tar.gz
bcm5719-llvm-d95d100c285f7a0eb54845b1c4eedcde8aa95705.zip
Reset "undef" flag when coalescing subregister into whole register
llvm-svn: 279344
-rw-r--r--llvm/lib/CodeGen/RegisterCoalescer.cpp1
1 files changed, 1 insertions, 0 deletions
diff --git a/llvm/lib/CodeGen/RegisterCoalescer.cpp b/llvm/lib/CodeGen/RegisterCoalescer.cpp
index 2d9a61be853..bf7aaccf1a9 100644
--- a/llvm/lib/CodeGen/RegisterCoalescer.cpp
+++ b/llvm/lib/CodeGen/RegisterCoalescer.cpp
@@ -975,6 +975,7 @@ bool RegisterCoalescer::reMaterializeTrivialDef(const CoalescerPair &CP,
NewRC = CommonRC;
DstIdx = 0;
DefMO.setSubReg(0);
+ DefMO.setIsUndef(false); // Only subregs can have def+undef.
}
}
}
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