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| author | H.J. Lu <hongjiu.lu@intel.com> | 2010-10-09 05:34:10 +0000 |
|---|---|---|
| committer | H.J. Lu <hjl@gcc.gnu.org> | 2010-10-08 22:34:10 -0700 |
| commit | c2c795ff32decda8e66945b85922c81cd3e9d3c5 (patch) | |
| tree | a03d22c398b076fd0e62a1a69c9e07cc59f07611 /gcc | |
| parent | 73d5e77082ea5b0cc6b52e734db0d46bc004635a (diff) | |
| download | gcc-c2c795ff32decda8e66945b85922c81cd3e9d3c5.zip gcc-c2c795ff32decda8e66945b85922c81cd3e9d3c5.tar.gz gcc-c2c795ff32decda8e66945b85922c81cd3e9d3c5.tar.bz2 | |
Support "andhi/andsi/anddi" as a zero-extending move.
gcc/
2010-10-08 H.J. Lu <hongjiu.lu@intel.com>
PR target/45913
* config/i386/i386.c (ix86_binary_operator_ok): Support
"andhi/andsi/anddi" as a zero-extending move.
gcc/testsuite/
2010-10-08 H.J. Lu <hongjiu.lu@intel.com>
PR target/45913
* gcc.target/i386/pr45913.c: New.
From-SVN: r165215
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 6 | ||||
| -rw-r--r-- | gcc/config/i386/i386.c | 11 | ||||
| -rw-r--r-- | gcc/testsuite/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/testsuite/gcc.target/i386/pr45913.c | 23 |
4 files changed, 44 insertions, 1 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index a560cc7..538551d 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,9 @@ +2010-10-08 H.J. Lu <hongjiu.lu@intel.com> + + PR target/45913 + * config/i386/i386.c (ix86_binary_operator_ok): Support + "andhi/andsi/anddi" as a zero-extending move. + 2010-10-08 Nathan Froyd <froydnj@codesourcery.com> * builtins.c (fold_call_stmt): Don't copy gimple call arguments diff --git a/gcc/config/i386/i386.c b/gcc/config/i386/i386.c index 33510a7..999c716 100644 --- a/gcc/config/i386/i386.c +++ b/gcc/config/i386/i386.c @@ -14987,7 +14987,16 @@ ix86_binary_operator_ok (enum rtx_code code, enum machine_mode mode, /* Source 1 cannot be a non-matching memory. */ if (MEM_P (src1) && !rtx_equal_p (dst, src1)) - return false; + { + /* Support "andhi/andsi/anddi" as a zero-extending move. */ + return (code == AND + && (mode == HImode + || mode == SImode + || (TARGET_64BIT && mode == DImode)) + && CONST_INT_P (src2) + && (INTVAL (src2) == 0xff + || INTVAL (src2) == 0xffff)); + } return true; } diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog index a576470..9c2d0df 100644 --- a/gcc/testsuite/ChangeLog +++ b/gcc/testsuite/ChangeLog @@ -1,3 +1,8 @@ +2010-10-08 H.J. Lu <hongjiu.lu@intel.com> + + PR target/45913 + * gcc.target/i386/pr45913.c: New. + 2010-10-08 Jerry DeLisle <jvdelisle@gcc.gnu.org> PR fortran/45943 diff --git a/gcc/testsuite/gcc.target/i386/pr45913.c b/gcc/testsuite/gcc.target/i386/pr45913.c new file mode 100644 index 0000000..46b9c66 --- /dev/null +++ b/gcc/testsuite/gcc.target/i386/pr45913.c @@ -0,0 +1,23 @@ +/* PR target/45913 */ +/* { dg-do compile } */ +/* { dg-options "-O2 -fselective-scheduling2 -fsel-sched-pipelining -fsel-sched-pipelining-outer-loops" } */ + +extern void bar (int, int); + +int ss[128]; + +void +foo (int i, int j, int k, int *p1, int *p2) +{ + int s[128]; + __builtin_memcpy (s, ss, sizeof s); + + while (i--) + { + int a = s[i]; + while (j--) + bar (k, p2[a]); + j = s[i] & 0xFF; + bar (p1[a], k); + } +} |