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Expansions for u/srem, using the udiv expansion. More unit tests for udiv and u/srem.

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Fixed issue with Release build.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164654 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Michael Ilseman
2012-09-26 01:55:01 +00:00
parent 85042e6585
commit b55462bcfb
3 changed files with 221 additions and 7 deletions
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10
include/llvm/Transforms/Utils/IntegerDivision.h
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@@ -23,6 +23,16 @@ namespace llvm {
namespace llvm {
/// Generate code to calculate the remainder of two integers, replacing Rem
/// with the generated code. This currently generates code using the udiv
/// expansion, but future work includes generating more specialized code,
/// e.g. when more information about the operands are known. Currently only
/// implements 32bit scalar division (due to udiv's limitation), but future
/// work is removing this limitation.
///
/// @brief Replace Rem with generated code.
bool expandRemainder(BinaryOperator *Rem);
/// Generate code to divide two integers, replacing Div with the generated
/// code. This currently generates code similarly to compiler-rt's
/// implementations, but future work includes generating more specialized code