[llvm] 47b0052 - [CoverageMapping] Avoid use of pow() resulting in solaris build fail (#75559)

[via llvm-commits]

Author: Alan Phipps
Date: 2023-12-14T23:49:35-06:00
New Revision: 47b0052f3144afdfe28c64d8b12e351141805ec6

URL: https://github.com/llvm/llvm-project/commit/47b0052f3144afdfe28c64d8b12e351141805ec6
DIFF: https://github.com/llvm/llvm-project/commit/47b0052f3144afdfe28c64d8b12e351141805ec6.diff

LOG: [CoverageMapping] Avoid use of pow() resulting in solaris build fail (#75559)

Fixes a build failure introduced by
commit 8ecbb0404d74 ("Reland [Coverage][llvm-cov]
Enable MC/DC Support in LLVM Source-based Code Coverage (2/3)")

Use of pow() is not necessary.

Added: 
    

Modified: 
    llvm/lib/ProfileData/Coverage/CoverageMapping.cpp

Removed: 
    


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diff  --git a/llvm/lib/ProfileData/Coverage/CoverageMapping.cpp b/llvm/lib/ProfileData/Coverage/CoverageMapping.cpp
index 80875702b02ab9..eece6a2cc71797 100644
--- a/llvm/lib/ProfileData/Coverage/CoverageMapping.cpp
+++ b/llvm/lib/ProfileData/Coverage/CoverageMapping.cpp
@@ -281,7 +281,7 @@ class MCDCRecordProcessor {
       : ExecutedTestVectorBitmap(Bitmap), Region(Region), Branches(Branches),
         NumConditions(Region.MCDCParams.NumConditions),
         Folded(NumConditions, false), IndependencePairs(NumConditions),
-        TestVectors(pow(2, NumConditions)) {}
+        TestVectors((size_t)1 << NumConditions) {}
 
 private:
   void recordTestVector(MCDCRecord::TestVector &TV,