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| author | Michael Kruse <llvm@meinersbur.de> | 2016-06-03 18:51:48 +0000 |
|---|---|---|
| committer | Michael Kruse <llvm@meinersbur.de> | 2016-06-03 18:51:48 +0000 |
| commit | 5c527f9963cb31bef117a7421c4480b2a59a7ce2 (patch) | |
| tree | 4d4d94d649b313b094a0b9fc738d8991e9d07749 /polly/lib/CodeGen | |
| parent | 6f6d012e32e8336c6d8668000c2855c08ac8bd8e (diff) | |
| download | bcm5719-llvm-5c527f9963cb31bef117a7421c4480b2a59a7ce2.tar.gz bcm5719-llvm-5c527f9963cb31bef117a7421c4480b2a59a7ce2.zip | |
Fix modulo compared to zero.
In case of modulo compared to zero, we need to do signed modulo
operation as unsigned can give different results based on whether the
dividend is negative or not.
This addresses llvm.org/PR27707
Contributed-by: Chris Jenneisch <chrisj@codeaurora.org>
Reviewers: _jdoerfert, grosser, Meinersbur
Differential Revision: http://reviews.llvm.org/D20145
llvm-svn: 271707
Diffstat (limited to 'polly/lib/CodeGen')
| -rw-r--r-- | polly/lib/CodeGen/IslExprBuilder.cpp | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/polly/lib/CodeGen/IslExprBuilder.cpp b/polly/lib/CodeGen/IslExprBuilder.cpp index ba616562982..7dcc6518cb1 100644 --- a/polly/lib/CodeGen/IslExprBuilder.cpp +++ b/polly/lib/CodeGen/IslExprBuilder.cpp @@ -352,7 +352,7 @@ Value *IslExprBuilder::createOpBin(__isl_take isl_ast_expr *Expr) { break; case isl_ast_op_zdiv_r: // Result only compared against zero - Res = Builder.CreateURem(LHS, RHS, "pexp.zdiv_r"); + Res = Builder.CreateSRem(LHS, RHS, "pexp.zdiv_r"); break; } |
