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| author | rguenth <rguenth@138bc75d-0d04-0410-961f-82ee72b054a4> | 2007-04-27 13:43:42 +0000 |
|---|---|---|
| committer | rguenth <rguenth@138bc75d-0d04-0410-961f-82ee72b054a4> | 2007-04-27 13:43:42 +0000 |
| commit | 5adc10665d53dbe2f3a06b603c942d169c5adb5f (patch) | |
| tree | 3c5a5da4c9f306873b3bddd33f3d5953550b2ec9 /gcc/testsuite/gcc.dg/tree-ssa/pr30978.c | |
| parent | e71da05f75b758c0b921f2a6046365a8d8f67218 (diff) | |
| download | gcc-5adc10665d53dbe2f3a06b603c942d169c5adb5f.tar.gz | |
2007-04-27 Richard Guenther <rguenther@suse.de>
PR tree-optimization/30965
PR tree-optimization/30978
* Makefile.in (tree-ssa-forwprop.o): Depend on $(FLAGS_H).
* tree-ssa-forwprop.c (forward_propagate_into_cond_1): Remove.
(find_equivalent_equality_comparison): Likewise.
(simplify_cond): Likewise.
(get_prop_source_stmt): New helper.
(get_prop_dest_stmt): Likewise.
(can_propagate_from): Likewise.
(remove_prop_source_from_use): Likewise.
(combine_cond_expr_cond): Likewise.
(forward_propagate_comparison): New function.
(forward_propagate_into_cond): Rewrite to use fold for
tree combining.
(tree_ssa_forward_propagate_single_use_vars): Call
forward_propagate_comparison to propagate comparisons.
* gcc.dg/tree-ssa/pr30978.c: New testcase.
* gcc.dg/tree-ssa/bool-3.c: Remove XFAIL, explain why.
* gcc.dg/tree-ssa/ssa-fre-4.c: Use char instead of bool
* gcc.dg/strict-overflow-5.c: Adjust tree dump scanning.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@124217 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/testsuite/gcc.dg/tree-ssa/pr30978.c')
| -rw-r--r-- | gcc/testsuite/gcc.dg/tree-ssa/pr30978.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/tree-ssa/pr30978.c b/gcc/testsuite/gcc.dg/tree-ssa/pr30978.c new file mode 100644 index 00000000000..5444e2d197c --- /dev/null +++ b/gcc/testsuite/gcc.dg/tree-ssa/pr30978.c @@ -0,0 +1,14 @@ +/* { dg-do compile } */ +/* { dg-options "-O -fdump-tree-optimized" } */ + +int foo(int a) +{ + unsigned int b = a > 0; + char c = b; + _Bool d = c == 0; + int e = !d; + return e; +} + +/* { dg-final { scan-tree-dump "return a > 0;" "optimized" } } */ +/* { dg-final { cleanup-tree-dump "optimized" } } */ |