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| author | Steven Bosscher <stevenb@suse.de> | 2005-09-29 12:25:10 +0000 |
|---|---|---|
| committer | Steven Bosscher <steven@gcc.gnu.org> | 2005-09-29 12:25:10 +0000 |
| commit | 1ebd8d9ac1a51af9a1a65f1db575fd2499835074 (patch) | |
| tree | bb658ab7113eb0a075f5c79afff242ff5018b2f5 /gcc/testsuite/gcc.dg | |
| parent | 577b2a064ee8634cd57b36cecddb4e9e2a57e51c (diff) | |
| download | gcc-1ebd8d9ac1a51af9a1a65f1db575fd2499835074.zip gcc-1ebd8d9ac1a51af9a1a65f1db575fd2499835074.tar.gz gcc-1ebd8d9ac1a51af9a1a65f1db575fd2499835074.tar.bz2 | |
re PR tree-optimization/23911 (Failure to propagate constants from a const initializer for _Complex)
gcc/
PR tree-optimization/23911
* tree-ssa-ccp.c (fold_const_aggregate_ref): Handle REALPART_EXPR
and IMAGPART_EXPR too.
testsuite/
* gcc.dg/pr23911.c: New test.
From-SVN: r104771
Diffstat (limited to 'gcc/testsuite/gcc.dg')
| -rw-r--r-- | gcc/testsuite/gcc.dg/pr23911.c | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/pr23911.c b/gcc/testsuite/gcc.dg/pr23911.c new file mode 100644 index 0000000..1003075 --- /dev/null +++ b/gcc/testsuite/gcc.dg/pr23911.c @@ -0,0 +1,22 @@ +/* This was a missed optimization in tree constant propagation + that CSE would catch later on. */ +/* { dg-do compile } */ +/* { dg-options "-O2 -fdump-tree-store_ccp" } */ + +double _Complex *a; +const double _Complex b[10] = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9}; + +void +test (void) +{ + a[0] = b[0] + b[1]; + a[1] = b[0] + b[1]; + return; +} + +/* After store_ccp, there should not be any assignments from real or + imaginary parts anymore. The constants should be loaded from b and + propagated into the elements of a. */ +/* { dg-final { scan-tree-dump-times "= CR" 0 "store_ccp" } } */ +/* { dg-final { scan-tree-dump-times "= CI" 0 "store_ccp" } } */ +/* { dg-final { cleanup-tree-dump "store_ccp" } } */ |