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| author | Chris Lattner <sabre@nondot.org> | 2007-03-25 04:46:28 +0000 |
|---|---|---|
| committer | Chris Lattner <sabre@nondot.org> | 2007-03-25 04:46:28 +0000 |
| commit | 9c9e2f1af23b3251efb758b1fc279a2af88f46c3 (patch) | |
| tree | c70b60d8805cc6899d1591a572d2ebb469409c51 | |
| parent | 8810241ebcbf62e835d479b8642a66e7e6804cf1 (diff) | |
| download | bcm5719-llvm-9c9e2f1af23b3251efb758b1fc279a2af88f46c3.tar.gz bcm5719-llvm-9c9e2f1af23b3251efb758b1fc279a2af88f46c3.zip | |
add a note
llvm-svn: 35330
| -rw-r--r-- | llvm/lib/Target/PowerPC/README.txt | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/llvm/lib/Target/PowerPC/README.txt b/llvm/lib/Target/PowerPC/README.txt index 932893eae1b..074dffce96e 100644 --- a/llvm/lib/Target/PowerPC/README.txt +++ b/llvm/lib/Target/PowerPC/README.txt @@ -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. + +===-------------------------------------------------------------------------=== |
