| commit | 3e6099b05fa85d9e5d82f04f73722f2af301c772 | [log] [tgz] |
|---|---|---|
| author | Chris Lattner <sabre@nondot.org> | Sun Oct 30 06:41:49 2005 +0000 |
| committer | Chris Lattner <sabre@nondot.org> | Sun Oct 30 06:41:49 2005 +0000 |
| tree | fc75ec12026b7ccbec80c98902b3ba4554268202 | |
| parent | 4446e0450949d612b40907cbd016b55c3b226c3d [diff] |
Codegen mul by negative power of two with a shift and negate.
This implements test/Regression/CodeGen/PowerPC/mul-neg-power-2.ll,
producing:
_foo:
slwi r2, r3, 1
subfic r3, r2, 63
blr
instead of:
_foo:
mulli r2, r3, -2
addi r3, r2, 63
blr
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24106 91177308-0d34-0410-b5e6-96231b3b80d8