diff options
| author | David Majnemer <david.majnemer@gmail.com> | 2013-05-12 00:07:05 +0000 |
|---|---|---|
| committer | David Majnemer <david.majnemer@gmail.com> | 2013-05-12 00:07:05 +0000 |
| commit | 6c30f49af39da4c39cdab5f303f57f4809218b41 (patch) | |
| tree | eb372f6198fa0992596c4b53c3cd5c3cbba3c94a /clang/lib/CodeGen/CodeGenModule.cpp | |
| parent | f2305e44675390adc80bae4834672132c12686f5 (diff) | |
| download | bcm5719-llvm-6c30f49af39da4c39cdab5f303f57f4809218b41.tar.gz bcm5719-llvm-6c30f49af39da4c39cdab5f303f57f4809218b41.zip | |
InstCombine: Flip the order of two urem transforms
There are two transforms in visitUrem that conflict with each other.
*) One, if a divisor is a power of two, subtracts one from the divisor
and turns it into a bitwise-and.
*) The other unwraps both operands if they are surrounded by zext
instructions.
Flipping the order allows the subtraction to go beneath the sign
extension.
llvm-svn: 181668
Diffstat (limited to 'clang/lib/CodeGen/CodeGenModule.cpp')
0 files changed, 0 insertions, 0 deletions
