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| author | Joseph Myers <joseph@codesourcery.com> | 2008-10-16 18:05:57 +0100 |
|---|---|---|
| committer | Joseph Myers <jsm28@gcc.gnu.org> | 2008-10-16 18:05:57 +0100 |
| commit | bbe67e7ccffa62d1b8990cf8c88fb6f659efc6e5 (patch) | |
| tree | f630ebe95310fde77ad8f064316d96d61265bf94 | |
| parent | dd9315ded08da38108ff04216afb2ac333ab5380 (diff) | |
| download | gcc-bbe67e7ccffa62d1b8990cf8c88fb6f659efc6e5.zip gcc-bbe67e7ccffa62d1b8990cf8c88fb6f659efc6e5.tar.gz gcc-bbe67e7ccffa62d1b8990cf8c88fb6f659efc6e5.tar.bz2 | |
re PR c/33192 (__imag operator drops side effects in subexpr)
PR c/33192
* c-typeck.c (build_unary_op): Use omit_one_operand for
IMAGPART_EXPR of real argument.
testsuite:
* gcc.dg/imag-1.c: New test.
From-SVN: r141176
| -rw-r--r-- | gcc/ChangeLog | 6 | ||||
| -rw-r--r-- | gcc/c-typeck.c | 2 | ||||
| -rw-r--r-- | gcc/testsuite/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/testsuite/gcc.dg/imag-1.c | 18 |
4 files changed, 30 insertions, 1 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index b242191..9fdf2c5 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,9 @@ +2008-10-16 Joseph Myers <joseph@codesourcery.com> + + PR c/33192 + * c-typeck.c (build_unary_op): Use omit_one_operand for + IMAGPART_EXPR of real argument. + 2008-10-16 Jakub Jelinek <jakub@redhat.com> PR tree-optimization/37664 diff --git a/gcc/c-typeck.c b/gcc/c-typeck.c index ab8df37..da98c43 100644 --- a/gcc/c-typeck.c +++ b/gcc/c-typeck.c @@ -3038,7 +3038,7 @@ build_unary_op (location_t location, else if (TREE_CODE (TREE_TYPE (arg)) == COMPLEX_TYPE) ret = fold_build1 (IMAGPART_EXPR, TREE_TYPE (TREE_TYPE (arg)), arg); else - ret = convert (TREE_TYPE (arg), integer_zero_node); + ret = omit_one_operand (TREE_TYPE (arg), integer_zero_node, arg); goto return_build_unary_op; case PREINCREMENT_EXPR: diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog index bb15a26..9d3d304 100644 --- a/gcc/testsuite/ChangeLog +++ b/gcc/testsuite/ChangeLog @@ -1,3 +1,8 @@ +2008-10-16 Joseph Myers <joseph@codesourcery.com> + + PR c/33192 + * gcc.dg/imag-1.c: New test. + 2008-10-16 Daniel Kraft <d@domob.eu> * gfortran.dg/elemental_intrinsic_1.f03: New test. diff --git a/gcc/testsuite/gcc.dg/imag-1.c b/gcc/testsuite/gcc.dg/imag-1.c new file mode 100644 index 0000000..e07ef72 --- /dev/null +++ b/gcc/testsuite/gcc.dg/imag-1.c @@ -0,0 +1,18 @@ +/* Test for __imag__ side effects; see PR 33192. */ +/* Origin: Joseph Myers <joseph@codesourcery.com> */ +/* { dg-do run } */ +/* { dg-options "-std=gnu99" } */ + +extern void abort (void); +extern void exit (int); + +int +main (void) +{ + int i, j; + i = 1; + j = __imag__ ++i; + if (i != 2 || j != 0) + abort (); + return 0; +} |