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| author | Jakub Jelinek <jakub@redhat.com> | 2002-03-13 08:41:45 +0100 |
|---|---|---|
| committer | Jakub Jelinek <jakub@gcc.gnu.org> | 2002-03-13 08:41:45 +0100 |
| commit | 4061c1a39342c6dc6ff372a9e05d206acad4fac5 (patch) | |
| tree | d1257f9eca533414f42e43fe6d3e0fc749d0f580 /gcc | |
| parent | 9f53e9654b86fd142c8c3e66ce843ddb9b1de0b3 (diff) | |
| download | gcc-4061c1a39342c6dc6ff372a9e05d206acad4fac5.zip gcc-4061c1a39342c6dc6ff372a9e05d206acad4fac5.tar.gz gcc-4061c1a39342c6dc6ff372a9e05d206acad4fac5.tar.bz2 | |
loop.c (basic_induction_var): Don't call convert_modes if mode classes are different.
* loop.c (basic_induction_var): Don't call convert_modes if mode
classes are different.
* gcc.c-torture/compile/20020309-2.c: New test.
From-SVN: r50721
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/loop.c | 7 | ||||
| -rw-r--r-- | gcc/testsuite/ChangeLog | 4 | ||||
| -rw-r--r-- | gcc/testsuite/gcc.c-torture/compile/20020309-2.c | 16 |
4 files changed, 29 insertions, 3 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 39de91f..5bd8a31 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,8 @@ +2002-03-13 Jakub Jelinek <jakub@redhat.com> + + * loop.c (basic_induction_var): Don't call convert_modes if mode + classes are different. + 2002-03-12 Richard Henderson <rth@redhat.com> PR optimization/5901 @@ -6214,10 +6214,11 @@ basic_induction_var (loop, x, mode, dest_reg, p, inc_val, mult_val, location) case CONST: /* convert_modes aborts if we try to convert to or from CCmode, so just exclude that case. It is very unlikely that a condition code value - would be a useful iterator anyways. */ + would be a useful iterator anyways. convert_modes aborts if we try to + convert a float mode to non-float or vice versa too. */ if (loop->level == 1 - && GET_MODE_CLASS (mode) != MODE_CC - && GET_MODE_CLASS (GET_MODE (dest_reg)) != MODE_CC) + && GET_MODE_CLASS (mode) == GET_MODE_CLASS (GET_MODE (dest_reg)) + && GET_MODE_CLASS (mode) != MODE_CC) { /* Possible bug here? Perhaps we don't know the mode of X. */ *inc_val = convert_modes (GET_MODE (dest_reg), mode, x, 0); diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog index cde8e62..9d55220 100644 --- a/gcc/testsuite/ChangeLog +++ b/gcc/testsuite/ChangeLog @@ -1,3 +1,7 @@ +2002-03-13 Jakub Jelinek <jakub@redhat.com> + + * gcc.c-torture/compile/20020309-2.c: New test. + 2002-03-12 Nathan Sidwell <nathan@codesourcery.com> * g++.dg/other/access1.C: New test. diff --git a/gcc/testsuite/gcc.c-torture/compile/20020309-2.c b/gcc/testsuite/gcc.c-torture/compile/20020309-2.c new file mode 100644 index 0000000..77699e4 --- /dev/null +++ b/gcc/testsuite/gcc.c-torture/compile/20020309-2.c @@ -0,0 +1,16 @@ +/* This testcase ICEd on IA-32 at -O2, because loop was calling convert_modes + between a MODE_FLOAT and MODE_INT class modes. */ + +typedef union +{ + double d; + long long ll; +} A; + +void +foo (A x, A **y, A z) +{ + for (; *y; y++) + if (x.ll == 262 && (*y)->d == z.d) + break; +} |