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New case to handle someday

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llvm-svn: 24075
This commit is contained in:
Nate Begeman 2005-10-28 23:26:57 +00:00
parent d44a96088b
commit da6888930d
1 changed files with 17 additions and 0 deletions
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17
lib/Target/PowerPC/README.txt
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@ -217,5 +217,22 @@ _test:
stw r2, 0(r3)
blr
===-------------------------------------------------------------------------===
Compile
int foo(int a) { return a * -2 + 63; }
to
_foo:
slwi r0,r3,1
subfic r3,r0,63
blr
instead of:
_foo:
mulli r2,r3,-2
addi r3,r2,63
blr