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5 Commits

Author SHA1 Message Date
Bill Wendling
d1f658563d This test case: 
long test(long x) { return (x & 123124) | 3; }

Currently compiles to:

_test:
        orl     $3, %edi
        movq    %rdi, %rax
        andq    $123127, %rax
        ret

This is because instruction and DAG combiners canonicalize

  (or (and x, C), D) -> (and (or, D), (C | D))

However, this is only profitable if (C & D) != 0. It gets in the way of the
3-addressification because the input bits are known to be zero.

llvm-svn: 97616
 2010-03-03 00:35:56 +00:00
Dan Gohman
df2896d609 Eliminate more uses of llvm-as and llvm-dis. 
llvm-svn: 81290
 2009-09-08 23:54:48 +00:00
Tanya Lattner
8116db05a6 Remove llvm-upgrade and update tests. 
llvm-svn: 47432
 2008-02-21 07:42:26 +00:00
Dan Gohman
794fa1f8f7 Convert tests using "| wc -l | grep ..." to use the count script. 
llvm-svn: 41097
 2007-08-15 13:36:28 +00:00
Reid Spencer
4572ce85b0 Regression is gone, don't try to find it on clean target. 
llvm-svn: 33296
 2007-01-17 07:59:14 +00:00