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| author | Jeff Law <law@redhat.com> | 2016-10-21 14:41:34 -0600 |
|---|---|---|
| committer | Jeff Law <law@gcc.gnu.org> | 2016-10-21 14:41:34 -0600 |
| commit | 20276dc9d1b4222926d4670c55933c121fa3d2e3 (patch) | |
| tree | e8d4f545cd8a8fb810c4795f58f01c51ba021ea9 /gcc | |
| parent | f75036994f9d6945265d02cb29de502d6d7d538d (diff) | |
| download | gcc-20276dc9d1b4222926d4670c55933c121fa3d2e3.zip gcc-20276dc9d1b4222926d4670c55933c121fa3d2e3.tar.gz gcc-20276dc9d1b4222926d4670c55933c121fa3d2e3.tar.bz2 | |
re PR tree-optimization/71947 (x ^ y not folded to 0 if x == y by DOM)
* PR tree-optimization/71947
* gcc.dg/tree-ssa/pr71947-4.c: Avoid x86 opcode.
* gcc.dg/tree-ssa/pr71947-5.c: Likewise.
* gcc.dg/tree-ssa/pr71947-6.c: Make it opt-in rather than opt-out.
From-SVN: r241429
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/testsuite/ChangeLog | 7 | ||||
| -rw-r--r-- | gcc/testsuite/gcc.dg/tree-ssa/pr71947-4.c | 2 | ||||
| -rw-r--r-- | gcc/testsuite/gcc.dg/tree-ssa/pr71947-5.c | 2 | ||||
| -rw-r--r-- | gcc/testsuite/gcc.dg/tree-ssa/pr71947-6.c | 3 |
4 files changed, 11 insertions, 3 deletions
diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog index 62aa521..09db0f8 100644 --- a/gcc/testsuite/ChangeLog +++ b/gcc/testsuite/ChangeLog @@ -1,3 +1,10 @@ +2016-10-21 Jeff Law <law@redhat.com> + + * PR tree-optimization/71947 + * gcc.dg/tree-ssa/pr71947-4.c: Avoid x86 opcode. + * gcc.dg/tree-ssa/pr71947-5.c: Likewise. + * gcc.dg/tree-ssa/pr71947-6.c: Make it opt-in rather than opt-out. + 2016-10-21 Kugan Vivekanandarajah <kuganv@linaro.org> * gcc.dg/ipa/vrp5.c: New test. diff --git a/gcc/testsuite/gcc.dg/tree-ssa/pr71947-4.c b/gcc/testsuite/gcc.dg/tree-ssa/pr71947-4.c index a881f0d..a2b19fe 100644 --- a/gcc/testsuite/gcc.dg/tree-ssa/pr71947-4.c +++ b/gcc/testsuite/gcc.dg/tree-ssa/pr71947-4.c @@ -6,7 +6,7 @@ static inline long load(long *p) { long ret; - asm ("movq %1,%0\n\t" : "=r" (ret) : "m" (*p)); + asm ("xyzzy %1,%0\n\t" : "=r" (ret) : "m" (*p)); if (ret != *p) __builtin_unreachable(); return ret; diff --git a/gcc/testsuite/gcc.dg/tree-ssa/pr71947-5.c b/gcc/testsuite/gcc.dg/tree-ssa/pr71947-5.c index fa679f0..e7038d0 100644 --- a/gcc/testsuite/gcc.dg/tree-ssa/pr71947-5.c +++ b/gcc/testsuite/gcc.dg/tree-ssa/pr71947-5.c @@ -5,7 +5,7 @@ static inline long load(long *p) { long ret; - asm ("movq %1,%0\n\t" : "=r" (ret) : "m" (*p)); + asm ("xyzzy %1,%0\n\t" : "=r" (ret) : "m" (*p)); if (ret != *p) __builtin_unreachable(); return ret; diff --git a/gcc/testsuite/gcc.dg/tree-ssa/pr71947-6.c b/gcc/testsuite/gcc.dg/tree-ssa/pr71947-6.c index 9cb89cb..9463535 100644 --- a/gcc/testsuite/gcc.dg/tree-ssa/pr71947-6.c +++ b/gcc/testsuite/gcc.dg/tree-ssa/pr71947-6.c @@ -1,4 +1,5 @@ -/* { dg-do compile } */ +/* This is highly dependent on branch costing, so make it opt-in. */ +/* { dg-do compile { target { i?86-*-* x86_64-*-* } } } */ /* { dg-options "-O2 -fno-tree-vrp -fdump-tree-dom-details" } */ |