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| author | Eric Botcazou <ebotcazou@adacore.com> | 2008-09-28 15:12:07 +0000 |
|---|---|---|
| committer | Eric Botcazou <ebotcazou@gcc.gnu.org> | 2008-09-28 15:12:07 +0000 |
| commit | 58760a81d720022370380a3607548e7d48e9ea83 (patch) | |
| tree | ff78e41067c16ff05944e5571c26cfb14b13bbfb /gcc | |
| parent | 86cfb27a7d6f38b1138ad376738ec6690dfe2e8b (diff) | |
| download | gcc-58760a81d720022370380a3607548e7d48e9ea83.zip gcc-58760a81d720022370380a3607548e7d48e9ea83.tar.gz gcc-58760a81d720022370380a3607548e7d48e9ea83.tar.bz2 | |
re PR middle-end/36575 (ACATS c460011 fails at -O3)
PR middle-end/36575
* fold-const (div_and_round_double) <ROUND_DIV_EXPR>: Fix typo.
From-SVN: r140734
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/fold-const.c | 4 | ||||
| -rw-r--r-- | gcc/testsuite/ChangeLog | 4 | ||||
| -rw-r--r-- | gcc/testsuite/gnat.dg/conv_decimal.adb | 34 |
4 files changed, 45 insertions, 2 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index c9fc7ae..e0405f6 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,5 +1,10 @@ 2008-09-28 Eric Botcazou <ebotcazou@adacore.com> + PR middle-end/36575 + * fold-const (div_and_round_double) <ROUND_DIV_EXPR>: Fix typo. + +2008-09-28 Eric Botcazou <ebotcazou@adacore.com> + * expmed.c (store_fixed_bit_field): Always use convert_to_mode in order to convert between modes. (extract_bit_field_1): Test TRULY_NOOP_TRUNCATION on the right mode. diff --git a/gcc/fold-const.c b/gcc/fold-const.c index 2c822b5..0ce122a 100644 --- a/gcc/fold-const.c +++ b/gcc/fold-const.c @@ -835,7 +835,7 @@ div_and_round_double (enum tree_code code, int uns, if (hden < 0) neg_double (lden, hden, &labs_den, &habs_den); - /* If (2 * abs (lrem) >= abs (lden)) */ + /* If (2 * abs (lrem) >= abs (lden)), adjust the quotient. */ mul_double ((HOST_WIDE_INT) 2, (HOST_WIDE_INT) 0, labs_rem, habs_rem, <wice, &htwice); @@ -843,7 +843,7 @@ div_and_round_double (enum tree_code code, int uns, < (unsigned HOST_WIDE_INT) htwice) || (((unsigned HOST_WIDE_INT) habs_den == (unsigned HOST_WIDE_INT) htwice) - && (labs_den < ltwice))) + && (labs_den <= ltwice))) { if (*hquo < 0) /* quo = quo - 1; */ diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog index cc430ac..41ba8dc 100644 --- a/gcc/testsuite/ChangeLog +++ b/gcc/testsuite/ChangeLog @@ -1,3 +1,7 @@ +2008-09-28 Eric Botcazou <ebotcazou@adacore.com> + + * gnat.dg/conv_decimal.adb: New test. + 2008-09-26 Jakub Jelinek <jakub@redhat.com> PR middle-end/37275 diff --git a/gcc/testsuite/gnat.dg/conv_decimal.adb b/gcc/testsuite/gnat.dg/conv_decimal.adb new file mode 100644 index 0000000..d5199c1 --- /dev/null +++ b/gcc/testsuite/gnat.dg/conv_decimal.adb @@ -0,0 +1,34 @@ +-- PR middle-end/36575 +-- reporter: Laurent Guerby <laurent@guerby.net> +-- { dg-do run } + +procedure Conv_Decimal is + + type Unsigned_Over_8 is mod 2**8+2; + type Signed_Over_8 is range -200 .. 200; + + procedure Assert(Truth: Boolean) is + begin + if not Truth then + raise Program_Error; + end if; + end; + + type Decim is delta 0.1 digits 5; + + Halfway : Decim := 2.5; + Neg_Half : Decim := -2.5; + + Big : Unsigned_Over_8; + Also_Big : Signed_Over_8; + +begin + Big := Unsigned_Over_8 (Halfway); -- Rounds up by 4.6(33). + Assert(Big = 3); + + Also_Big := Signed_Over_8 (Halfway); -- Rounds up by 4.6(33). + Assert(Also_Big = 3); + + Also_Big := Signed_Over_8 (Neg_Half); -- Rounds down by 4.6(33). + Assert(Also_Big = -3); +end; |