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| author | jakub <jakub@138bc75d-0d04-0410-961f-82ee72b054a4> | 2002-03-05 11:10:43 +0000 |
|---|---|---|
| committer | jakub <jakub@138bc75d-0d04-0410-961f-82ee72b054a4> | 2002-03-05 11:10:43 +0000 |
| commit | de2dd2b0d4cb7f770df5840804e1ee304b6546f4 (patch) | |
| tree | 7772b963c58a18a40588c6a82caf04b916db9551 | |
| parent | 301d4551399c22150701923f9664d1b19b96e703 (diff) | |
| download | ppe42-gcc-de2dd2b0d4cb7f770df5840804e1ee304b6546f4.tar.gz ppe42-gcc-de2dd2b0d4cb7f770df5840804e1ee304b6546f4.zip | |
* expmed.c (emit_store_flag): Don't test BITS_PER_WORD * 2
wide volatile memory by parts.
* gcc.c-torture/compile/20020304-2.c: New test.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@50314 138bc75d-0d04-0410-961f-82ee72b054a4
| -rw-r--r-- | gcc/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/expmed.c | 3 | ||||
| -rw-r--r-- | gcc/testsuite/ChangeLog | 2 | ||||
| -rw-r--r-- | gcc/testsuite/gcc.c-torture/compile/20020304-2.c | 10 |
4 files changed, 19 insertions, 1 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 1ea58afb6b6..13fb80d7c17 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,5 +1,10 @@ 2002-03-05 Jakub Jelinek <jakub@redhat.com> + * expmed.c (emit_store_flag): Don't test BITS_PER_WORD * 2 + wide volatile memory by parts. + +2002-03-05 Jakub Jelinek <jakub@redhat.com> + * ssa-ccp.c (ssa_ccp_substitute_constants): Don't crash if def is NULL. diff --git a/gcc/expmed.c b/gcc/expmed.c index 6f9a939ed01..6d58ea9957e 100644 --- a/gcc/expmed.c +++ b/gcc/expmed.c @@ -4278,7 +4278,8 @@ emit_store_flag (target, code, op0, op1, mode, unsignedp, normalizep) the comparison into one involving a single word. */ if (GET_MODE_BITSIZE (mode) == BITS_PER_WORD * 2 && GET_MODE_CLASS (mode) == MODE_INT - && op1 == const0_rtx) + && op1 == const0_rtx + && (GET_CODE (op0) != MEM || ! MEM_VOLATILE_P (op0))) { if (code == EQ || code == NE) { diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog index 378dba70cbf..77623573f3d 100644 --- a/gcc/testsuite/ChangeLog +++ b/gcc/testsuite/ChangeLog @@ -2,6 +2,8 @@ * gcc.dg/20020304-1.c: New test. + * gcc.c-torture/compile/20020304-2.c: New test. + 2002-03-04 Zack Weinberg <zack@codesourcery.com> * gcc.c-torture/compile/20020304-1.c: New test case diff --git a/gcc/testsuite/gcc.c-torture/compile/20020304-2.c b/gcc/testsuite/gcc.c-torture/compile/20020304-2.c new file mode 100644 index 00000000000..9a162d4935d --- /dev/null +++ b/gcc/testsuite/gcc.c-torture/compile/20020304-2.c @@ -0,0 +1,10 @@ +/* This testcase ICEd because a SUBREG of MEM/v was never + simplified. */ +volatile unsigned long long *a; + +unsigned char +foo (void) +{ + unsigned char b = (*a != 0); + return b; +} |
