diff options
| author | Zdenek Dvorak <ook@ucw.cz> | 2008-03-31 16:19:52 +0200 |
|---|---|---|
| committer | Zdenek Dvorak <rakdver@gcc.gnu.org> | 2008-03-31 14:19:52 +0000 |
| commit | 66f91b93db67ccea9e4d0ec803492e2dbd03974c (patch) | |
| tree | ffad40ad79ed9653b2a213a4f8b639c6da089e67 /gcc/testsuite/gcc.dg/pr35729.c | |
| parent | 6b20c50ffe1de0c65fc196825236387da0b5ba34 (diff) | |
| download | gcc-66f91b93db67ccea9e4d0ec803492e2dbd03974c.zip gcc-66f91b93db67ccea9e4d0ec803492e2dbd03974c.tar.gz gcc-66f91b93db67ccea9e4d0ec803492e2dbd03974c.tar.bz2 | |
re PR rtl-optimization/35729 (const volatile variable access incorrectly hoisted out of loop)
PR rtl-optimization/35729
* loop-invariant.c (check_maybe_invariant): Disallow volatile memory
references.
* gcc.dg/pr35729.c: New test.
From-SVN: r133755
Diffstat (limited to 'gcc/testsuite/gcc.dg/pr35729.c')
| -rw-r--r-- | gcc/testsuite/gcc.dg/pr35729.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/pr35729.c b/gcc/testsuite/gcc.dg/pr35729.c new file mode 100644 index 0000000..3ed40f4 --- /dev/null +++ b/gcc/testsuite/gcc.dg/pr35729.c @@ -0,0 +1,15 @@ +/* { dg-do compile } */ +/* { dg-options "-Os -fdump-rtl-loop2_invariant" } */ + +const volatile int g_361 = 3L; +volatile int g_2 = 0L; +void func_1 (void) +{ + for (g_2 = 0; g_2 > 10; g_2++) + { + int l_357 = g_361; + } +} + +/* { dg-final { scan-rtl-dump-times "Decided to move invariant" 0 "loop2_invariant" } } */ +/* { dg-final { cleanup-rtl-dump "loop2_invariant" } } */ |