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| author | Tom de Vries <tom@codesourcery.com> | 2011-12-17 11:39:49 +0000 |
|---|---|---|
| committer | Tom de Vries <vries@gcc.gnu.org> | 2011-12-17 11:39:49 +0000 |
| commit | bc958632e5e497d646ebbada08414b6a8323ff62 (patch) | |
| tree | 8956705136f6aeefe0cbbd8278ab72cef2059624 /gcc | |
| parent | 2f31f742a6932e2138ca47c8fa9556d41a64ac1d (diff) | |
| download | gcc-bc958632e5e497d646ebbada08414b6a8323ff62.zip gcc-bc958632e5e497d646ebbada08414b6a8323ff62.tar.gz gcc-bc958632e5e497d646ebbada08414b6a8323ff62.tar.bz2 | |
re PR tree-optimization/51491 (ccp when converting from alloca should add a CLOBBER to right before __builtin_stack_restore)
2011-12-17 Tom de Vries <tom@codesourcery.com>
PR tree-optimization/51491
* gcc.dg/pr51491.c: New test.
* gcc.dg/pr51491-2.c: Same.
From-SVN: r182433
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/testsuite/ChangeLog | 6 | ||||
| -rw-r--r-- | gcc/testsuite/gcc.dg/pr51491-2.c | 34 | ||||
| -rw-r--r-- | gcc/testsuite/gcc.dg/pr51491.c | 25 |
3 files changed, 65 insertions, 0 deletions
diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog index f2878ef..660ff9b 100644 --- a/gcc/testsuite/ChangeLog +++ b/gcc/testsuite/ChangeLog @@ -1,3 +1,9 @@ +2011-12-17 Tom de Vries <tom@codesourcery.com> + + PR tree-optimization/51491 + * gcc.dg/pr51491.c: New test. + * gcc.dg/pr51491-2.c: Same. + 2011-12-16 Jason Merrill <jason@redhat.com> PR c++/51416 diff --git a/gcc/testsuite/gcc.dg/pr51491-2.c b/gcc/testsuite/gcc.dg/pr51491-2.c new file mode 100644 index 0000000..bbfc96a --- /dev/null +++ b/gcc/testsuite/gcc.dg/pr51491-2.c @@ -0,0 +1,34 @@ +/* { dg-do compile } */ +/* { dg-options "-O2 -fdump-tree-ccp1" } */ + +int g (int *); + +int +f (int n) +{ + int tt = 0; + int t = 4; + { + int a[t + + (tt != 0 ? 6 : 0) + ]; + tt = g (a); + { + int b[n]; + tt += g (b); + if (n > 20) + tt += 148 * g (b); + tt += b[0]; + } + tt += a[0]; + } + { + int a[4]; + tt += g (a); + tt += a[0]; + } + return tt; +} + +/* { dg-final { scan-tree-dump-times "CLOBBER" 2 "ccp1"} } */ +/* { dg-final { cleanup-treee-dump "ccp1" } } */ diff --git a/gcc/testsuite/gcc.dg/pr51491.c b/gcc/testsuite/gcc.dg/pr51491.c new file mode 100644 index 0000000..50aa55f --- /dev/null +++ b/gcc/testsuite/gcc.dg/pr51491.c @@ -0,0 +1,25 @@ +/* { dg-do compile } */ +/* { dg-options "-O2 -fdump-rtl-expand" } */ + + +int g(int*); + +int f(void) +{ + int tt = 0; + int t = 4; + { + int a[t]; + tt = g(a); + tt += a[0]; + } + { + int a[4]; + tt += g(a); + tt += a[0]; + } + return tt; +} + +/* { dg-final { scan-rtl-dump-times "Partition" 1 "expand"} } */ +/* { dg-final { cleanup-rtl-dump "expand" } } */ |