diff options
| author | Richard Sandiford <richard@codesourcery.com> | 2006-04-09 10:06:20 +0000 |
|---|---|---|
| committer | Richard Sandiford <rsandifo@gcc.gnu.org> | 2006-04-09 10:06:20 +0000 |
| commit | c3a50ca3a820618098bbcc991d5d3a38764933f0 (patch) | |
| tree | 18d19f4755d3d6f1b26b39781fbe27a033d5f324 /gcc | |
| parent | fd18206b7250bc0e7bc8b92f084b1e15021c014f (diff) | |
| download | gcc-c3a50ca3a820618098bbcc991d5d3a38764933f0.zip gcc-c3a50ca3a820618098bbcc991d5d3a38764933f0.tar.gz gcc-c3a50ca3a820618098bbcc991d5d3a38764933f0.tar.bz2 | |
re PR rtl-optimization/27073 (invalid gcse manipulation of REG_EQUIV notes)
PR rtl-optimization/27073
* gcse.c (try_replace_reg): Just propagate into REG_EQUAL notes,
not REG_EQUIVs.
gcc/testsuite/
* gcc.c-torture/execute/pr27073.c: New test.
From-SVN: r112803
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 6 | ||||
| -rw-r--r-- | gcc/gcse.c | 2 | ||||
| -rw-r--r-- | gcc/testsuite/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/testsuite/gcc.c-torture/execute/pr27073.c | 25 |
4 files changed, 37 insertions, 1 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index e344f9e..60ce740 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,9 @@ +2006-04-09 Richard Sandiford <richard@codesourcery.com> + + PR rtl-optimization/27073 + * gcse.c (try_replace_reg): Just propagate into REG_EQUAL notes, + not REG_EQUIVs. + 2006-04-08 Daniel Berlin <dberlin@dberlin.org> * tree.h (tree_memory_tag): Add old_used_alone. @@ -2642,7 +2642,7 @@ find_used_regs (rtx *xptr, void *data ATTRIBUTE_UNUSED) static int try_replace_reg (rtx from, rtx to, rtx insn) { - rtx note = find_reg_equal_equiv_note (insn); + rtx note = find_reg_note (insn, REG_EQUAL, NULL); rtx src = 0; int success = 0; rtx set = single_set (insn); diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog index 3492c4b..41ba91e 100644 --- a/gcc/testsuite/ChangeLog +++ b/gcc/testsuite/ChangeLog @@ -1,3 +1,8 @@ +2006-04-09 Richard Sandiford <richard@codesourcery.com> + + PR rtl-optimization/27073 + * gcc.c-torture/execute/pr27073.c: New test. + 2006-04-08 Mike Stump <mrs@apple.com> * gcc.dg/pragma-darwin.c: Improve for ppc64. diff --git a/gcc/testsuite/gcc.c-torture/execute/pr27073.c b/gcc/testsuite/gcc.c-torture/execute/pr27073.c new file mode 100644 index 0000000..a58e9ac --- /dev/null +++ b/gcc/testsuite/gcc.c-torture/execute/pr27073.c @@ -0,0 +1,25 @@ +void __attribute__((noinline)) +foo (int *p, int d1, int d2, int d3, + short count, int s1, int s2, int s3, int s4, int s5) +{ + int n = count; + while (n--) + { + *p++ = s1; + *p++ = s2; + *p++ = s3; + *p++ = s4; + *p++ = s5; + } +} + +int main() +{ + int x[10], i; + + foo (x, 0, 0, 0, 2, 100, 200, 300, 400, 500); + for (i = 0; i < 10; i++) + if (x[i] != (i % 5 + 1) * 100) + abort (); + exit (0); +} |