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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35330 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2007-03-25 04:46:28 +00:00
parent b6ead97b7e
commit 013e051aac
1 changed files with 13 additions and 0 deletions
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13
lib/Target/PowerPC/README.txt
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@ -625,3 +625,16 @@ _foo: mr r0,r3
blr
===-------------------------------------------------------------------------===
test/CodeGen/PowerPC/2007-03-24-cntlzd.ll compiles to:
__ZNK4llvm5APInt17countLeadingZerosEv:
ld r2, 0(r3)
cntlzd r2, r2
or r2, r2, r2 <<-- silly.
addi r3, r2, -64
blr
The dead or is a 'truncate' from 64- to 32-bits.
===-------------------------------------------------------------------------===