Author: dim
Date: Thu Jan 18 21:44:07 2018
New Revision: 328145
URL: https://svnweb.freebsd.org/changeset/base/328145
Log:
Pull in r322016 from upstream llvm trunk (by Sanjay Patel):
[ValueTracking] remove overzealous assert
The test is derived from a failing fuzz test:
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=5008
Credit to @rksimon for pointing out the problem.
This should fix "Bad flavor while matching min/max" errors when building
the graphics/libsixel and science/kst2 ports.
Reported by: jbeich
PR: 225268, 225269
Modified:
head/contrib/llvm/lib/Analysis/ValueTracking.cpp
Modified: head/contrib/llvm/lib/Analysis/ValueTracking.cpp
==============================================================================
--- head/contrib/llvm/lib/Analysis/ValueTracking.cpp Thu Jan 18 21:39:59
2018 (r328144)
+++ head/contrib/llvm/lib/Analysis/ValueTracking.cpp Thu Jan 18 21:44:07
2018 (r328145)
@@ -4214,7 +4214,7 @@ static SelectPatternResult matchMinMaxOfMinMax(CmpInst
break;
return {SPF_UNKNOWN, SPNB_NA, false};
default:
- llvm_unreachable("Bad flavor while matching min/max");
+ return {SPF_UNKNOWN, SPNB_NA, false};
}
// a pred c ? m(a, b) : m(c, b) --> m(m(a, b), m(c, b))
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