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Remove some redundant stuff out of the readme.

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llvm-svn: 25308
This commit is contained in:
Nate Begeman 2006-01-14 01:24:22 +00:00
parent d92410b194
commit 10813e4f97
1 changed files with 0 additions and 18 deletions
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18
lib/Target/PowerPC/README.txt
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@ -219,24 +219,6 @@ should be branch free code. LLVM is turning it into < 1 because of the RHS.
===-------------------------------------------------------------------------=== ===-------------------------------------------------------------------------===
For this testcase:
int f1(int a, int b) { return (a&0xF)|(b&0xF0); }
We currently emit:
_f1:
rlwinm r2, r4, 0, 24, 27
rlwimi r2, r3, 0, 28, 31
or r3, r2, r2
blr
We could emit:
_f1:
rlwinm r4, r4, 0, 24, 27
rlwimi r3, r4, 0, 0, 27
blr
===-------------------------------------------------------------------------===
No loads or stores of the constants should be needed: No loads or stores of the constants should be needed:
struct foo { double X, Y; }; struct foo { double X, Y; };