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| author | Tom de Vries <tom@codesourcery.com> | 2014-11-21 12:26:11 +0000 |
|---|---|---|
| committer | Tom de Vries <vries@gcc.gnu.org> | 2014-11-21 12:26:11 +0000 |
| commit | ba483b00de68c9d5dfca8de0789aa66dd3433d10 (patch) | |
| tree | 73245510c28bd6b17a8a7fcece52526d72481433 /gcc | |
| parent | fc065a61a0ba09acbf31c67c7bb5f8d7123dbe97 (diff) | |
| download | gcc-ba483b00de68c9d5dfca8de0789aa66dd3433d10.zip gcc-ba483b00de68c9d5dfca8de0789aa66dd3433d10.tar.gz gcc-ba483b00de68c9d5dfca8de0789aa66dd3433d10.tar.bz2 | |
Add fgcse-sm test with scan-rtl-dump
2014-11-21 Tom de Vries <tom@codesourcery.com>
* gcc.dg/store-motion-fgcse-sm.c: New test.
From-SVN: r217916
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/testsuite/ChangeLog | 4 | ||||
| -rw-r--r-- | gcc/testsuite/gcc.dg/store-motion-fgcse-sm.c | 32 |
2 files changed, 36 insertions, 0 deletions
diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog index 26b2c25..1c6cb24 100644 --- a/gcc/testsuite/ChangeLog +++ b/gcc/testsuite/ChangeLog @@ -1,3 +1,7 @@ +2014-11-21 Tom de Vries <tom@codesourcery.com> + + * gcc.dg/store-motion-fgcse-sm.c: New test. + 2014-11-21 Evgeny Stupachenko <evstupac@gmail.com> PR target/60451 diff --git a/gcc/testsuite/gcc.dg/store-motion-fgcse-sm.c b/gcc/testsuite/gcc.dg/store-motion-fgcse-sm.c new file mode 100644 index 0000000..b331a24 --- /dev/null +++ b/gcc/testsuite/gcc.dg/store-motion-fgcse-sm.c @@ -0,0 +1,32 @@ +/* { dg-do run } */ +/* { dg-options "-O2 -ftree-pre -fno-tree-loop-im -fgcse-sm -fdump-rtl-store_motion" } */ + +/* tree-pre moves the *sum load out of the loop. ftree-loop-im moves the *sum + store out of the loop, so we disable it, to allow fgcse-sm to do it + instead. */ + +#include <stdlib.h> + +void __attribute__((noinline)) +f (unsigned int *__restrict__ a, unsigned int *__restrict__ sum, unsigned int n) +{ + unsigned int i; + for (i = 0; i < n; ++i) + *sum += a[i]; +} + +int +main () +{ + unsigned int a[] = { 1, 10, 100 }; + unsigned sum = 1000; + + f (a, &sum, 3); + if (sum != 1111) + abort (); + + return 0; +} + +/* Check that -fgcse-sm did something for f. */ +/* { dg-final { scan-rtl-dump "STORE_MOTION of f, .* basic blocks, 1 insns deleted, 1 insns created" "store_motion" } } */ |