diff options
| author | hjl <hjl@138bc75d-0d04-0410-961f-82ee72b054a4> | 2008-10-07 18:45:56 +0000 |
|---|---|---|
| committer | hjl <hjl@138bc75d-0d04-0410-961f-82ee72b054a4> | 2008-10-07 18:45:56 +0000 |
| commit | faf2a98b94a4bef423a73f6a57eb9aafdd017a19 (patch) | |
| tree | f586d335f31ec62e37bfd7708d7eb8de993cf531 | |
| parent | e50042428eac40d5b71fbd5a3fb43450e27e337d (diff) | |
| download | ppe42-gcc-faf2a98b94a4bef423a73f6a57eb9aafdd017a19.tar.gz ppe42-gcc-faf2a98b94a4bef423a73f6a57eb9aafdd017a19.zip | |
gcc/
2008-10-07 H.J. Lu <hongjiu.lu@intel.com>
PR middle-end/37731
* expmed.c (expand_mult): Properly check DImode constant in
CONST_DOUBLE.
gcc/testsuite/
2008-10-07 H.J. Lu <hongjiu.lu@intel.com>
PR middle-end/37731
* gcc.dg/torture/pr37731-1.c: New.
* gcc.dg/torture/pr37731-2.c: Likewise.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@140947 138bc75d-0d04-0410-961f-82ee72b054a4
| -rw-r--r-- | gcc/ChangeLog | 6 | ||||
| -rw-r--r-- | gcc/expmed.c | 3 | ||||
| -rw-r--r-- | gcc/testsuite/ChangeLog | 6 | ||||
| -rw-r--r-- | gcc/testsuite/gcc.dg/torture/pr37731-1.c | 17 | ||||
| -rw-r--r-- | gcc/testsuite/gcc.dg/torture/pr37731-2.c | 17 |
5 files changed, 48 insertions, 1 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 5582866162a..18911a224f4 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,9 @@ +2008-10-07 H.J. Lu <hongjiu.lu@intel.com> + + PR middle-end/37731 + * expmed.c (expand_mult): Properly check DImode constant in + CONST_DOUBLE. + 2008-10-07 Jakub Jelinek <jakub@redhat.com> PR debug/37738 diff --git a/gcc/expmed.c b/gcc/expmed.c index ae5ad0a2f12..5e8d7f30324 100644 --- a/gcc/expmed.c +++ b/gcc/expmed.c @@ -3075,7 +3075,8 @@ expand_mult (enum machine_mode mode, rtx op0, rtx op1, rtx target, { /* If we are multiplying in DImode, it may still be a win to try to work with shifts and adds. */ - if (CONST_DOUBLE_HIGH (op1) == 0) + if (CONST_DOUBLE_HIGH (op1) == 0 + && CONST_DOUBLE_LOW (op1) > 0) coeff = CONST_DOUBLE_LOW (op1); else if (CONST_DOUBLE_LOW (op1) == 0 && EXACT_POWER_OF_2_OR_ZERO_P (CONST_DOUBLE_HIGH (op1))) diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog index d3fdf004267..b33a77a0658 100644 --- a/gcc/testsuite/ChangeLog +++ b/gcc/testsuite/ChangeLog @@ -1,3 +1,9 @@ +2008-10-07 H.J. Lu <hongjiu.lu@intel.com> + + PR middle-end/37731 + * gcc.dg/torture/pr37731-1.c: New. + * gcc.dg/torture/pr37731-2.c: Likewise. + 2008-10-07 Jakub Jelinek <jakub@redhat.com> PR debug/37738 diff --git a/gcc/testsuite/gcc.dg/torture/pr37731-1.c b/gcc/testsuite/gcc.dg/torture/pr37731-1.c new file mode 100644 index 00000000000..5c156b1f9a6 --- /dev/null +++ b/gcc/testsuite/gcc.dg/torture/pr37731-1.c @@ -0,0 +1,17 @@ +/* { dg-do run } */ + +extern void abort (); + +unsigned long long xh = 1; + +int +main () +{ + unsigned long long yh = 0xffffffffull; + unsigned long long z = xh * yh; + + if (z != yh) + abort (); + + return 0; +} diff --git a/gcc/testsuite/gcc.dg/torture/pr37731-2.c b/gcc/testsuite/gcc.dg/torture/pr37731-2.c new file mode 100644 index 00000000000..a7f8f1e02e5 --- /dev/null +++ b/gcc/testsuite/gcc.dg/torture/pr37731-2.c @@ -0,0 +1,17 @@ +/* { dg-do run } */ + +extern void abort (); + +long long xh = 1; + +int +main () +{ + long long yh = 0xffffffffll; + long long z = xh * yh; + + if (z != yh) + abort (); + + return 0; +} |
