diff options
| author | hjl <hjl@138bc75d-0d04-0410-961f-82ee72b054a4> | 2010-10-09 05:34:10 +0000 |
|---|---|---|
| committer | hjl <hjl@138bc75d-0d04-0410-961f-82ee72b054a4> | 2010-10-09 05:34:10 +0000 |
| commit | 678451e45df34d26de6b7aaf7209cc7ef28fb4bb (patch) | |
| tree | a03d22c398b076fd0e62a1a69c9e07cc59f07611 | |
| parent | ca56294027990f3885aa152e55c2e6a26004b01f (diff) | |
| download | ppe42-gcc-678451e45df34d26de6b7aaf7209cc7ef28fb4bb.tar.gz ppe42-gcc-678451e45df34d26de6b7aaf7209cc7ef28fb4bb.zip | |
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.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@165215 138bc75d-0d04-0410-961f-82ee72b054a4
| -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 a560cc701b3..538551d85b8 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 33510a77c59..999c7160a57 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 a5764707b1c..9c2d0df5abd 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 00000000000..46b9c66f8cd --- /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); + } +} |
