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| author | Paolo Bonzini <bonzini@gnu.org> | 2004-02-10 13:41:16 +0000 |
|---|---|---|
| committer | Paolo Bonzini <bonzini@gcc.gnu.org> | 2004-02-10 13:41:16 +0000 |
| commit | 31cc6081778b66c7fc1d0e864fea5a73dcbd25c8 (patch) | |
| tree | 0875007b2f72c9c1dff1299a2d63339ae8a1c885 | |
| parent | d1d5c836a1a426c224efe898b5bad4ed6f3e055e (diff) | |
| download | gcc-31cc6081778b66c7fc1d0e864fea5a73dcbd25c8.zip gcc-31cc6081778b66c7fc1d0e864fea5a73dcbd25c8.tar.gz gcc-31cc6081778b66c7fc1d0e864fea5a73dcbd25c8.tar.bz2 | |
re PR middle-end/14092 (fold strips conversion from pointer to integer)
PR c/14092
* gcc.dg/pr14092-1.c: New testcase.
* fold-const.c (fold) <NEGATE_EXPR>: Convert result of
negate_expr back to the original type.
From-SVN: r77602
| -rw-r--r-- | gcc/ChangeLog | 6 | ||||
| -rw-r--r-- | gcc/fold-const.c | 2 | ||||
| -rw-r--r-- | gcc/testsuite/ChangeLog | 6 | ||||
| -rw-r--r-- | gcc/testsuite/gcc.dg/pr14092-1.c | 17 |
4 files changed, 30 insertions, 1 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 1f6b7482..c235d08 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,9 @@ +2004-02-10 Paolo Bonzini <bonzini@gnu.org> + + PR c/14092 + * fold-const.c (fold) <NEGATE_EXPR>: Convert result of + negate_expr back to the original type. + 2004-02-10 Alan Modra <amodra@bigpond.net.au> * config/rs6000/linux64.h (MD_FALLBACK_FRAME_STATE_FOR): Don't diff --git a/gcc/fold-const.c b/gcc/fold-const.c index 3f68051..71f1e9b 100644 --- a/gcc/fold-const.c +++ b/gcc/fold-const.c @@ -5785,7 +5785,7 @@ fold (tree expr) case NEGATE_EXPR: if (negate_expr_p (arg0)) - return negate_expr (arg0); + return fold_convert (type, negate_expr (arg0)); return t; case ABS_EXPR: diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog index b0bcf5f..a22f644 100644 --- a/gcc/testsuite/ChangeLog +++ b/gcc/testsuite/ChangeLog @@ -1,3 +1,9 @@ +2004-02-10 Paolo Bonzini <bonzini@gnu.org> + + PR c/14092 + + * gcc.dg/pr14092-1.c: New testcase. + 2004-02-10 Alan Modra <amodra@bigpond.net.au> * gcc.dg/cpp/assert4.c: Fix typo last change. diff --git a/gcc/testsuite/gcc.dg/pr14092-1.c b/gcc/testsuite/gcc.dg/pr14092-1.c new file mode 100644 index 0000000..86076c2 --- /dev/null +++ b/gcc/testsuite/gcc.dg/pr14092-1.c @@ -0,0 +1,17 @@ +/* PR c/14092 + * Origin: bonzini@gnu.org + * rejects-valid + */ +/* { dg-do compile } */ + +typedef struct _PLCI { + unsigned char x; + unsigned char buf[1]; +} PLCI; + + +void nl_ind(PLCI * plci) +{ + plci->x = -((int)(plci->buf)) & 3; +} + |