[llvm] 71e0b82 - [InstCombine] Lower infinite combine loop detection thresholds

[Roman Lebedev via llvm-commits]

Author: Roman Lebedev
Date: 2020-08-19T14:37:57+03:00
New Revision: 71e0b82c9f5039cb3987c91075e78733ef044c07

URL: https://github.com/llvm/llvm-project/commit/71e0b82c9f5039cb3987c91075e78733ef044c07
DIFF: https://github.com/llvm/llvm-project/commit/71e0b82c9f5039cb3987c91075e78733ef044c07.diff

LOG: [InstCombine] Lower infinite combine loop detection thresholds

It's been a month since 2f3862eb9f21e8a0d48505637fefe6e5e295c18c,
and no new bug reports about the threshold were filled,
so let's bump it again and wait again.

Added: 
    

Modified: 
    llvm/lib/Transforms/InstCombine/InstructionCombining.cpp

Removed: 
    


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diff  --git a/llvm/lib/Transforms/InstCombine/InstructionCombining.cpp b/llvm/lib/Transforms/InstCombine/InstructionCombining.cpp
index cb6e77aa029c..9033e084eb75 100644
--- a/llvm/lib/Transforms/InstCombine/InstructionCombining.cpp
+++ b/llvm/lib/Transforms/InstCombine/InstructionCombining.cpp
@@ -127,7 +127,7 @@ DEBUG_COUNTER(VisitCounter, "instcombine-visit",
 // FIXME: these limits eventually should be as low as 2.
 static constexpr unsigned InstCombineDefaultMaxIterations = 1000;
 #ifndef NDEBUG
-static constexpr unsigned InstCombineDefaultInfiniteLoopThreshold = 100;
+static constexpr unsigned InstCombineDefaultInfiniteLoopThreshold = 10;
 #else
 static constexpr unsigned InstCombineDefaultInfiniteLoopThreshold = 1000;
 #endif