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author | Dan Albert <danalbert@google.com> | 2016-02-24 13:48:45 -0800 |
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committer | Dan Albert <danalbert@google.com> | 2016-02-24 13:51:18 -0800 |
commit | b9de1157289455b0ca26daff519d4a0ddcd1fa13 (patch) | |
tree | 4c56cc0a34b91f17033a40a455f26652304f7b8d /gcc-4.8.3/gcc/testsuite/gcc.dg/pr30957-1.c | |
parent | 098157a754787181cfa10e71325832448ddcea98 (diff) | |
download | toolchain_gcc-b9de1157289455b0ca26daff519d4a0ddcd1fa13.tar.gz toolchain_gcc-b9de1157289455b0ca26daff519d4a0ddcd1fa13.tar.bz2 toolchain_gcc-b9de1157289455b0ca26daff519d4a0ddcd1fa13.zip |
Update 4.8.1 to 4.8.3.
My previous drop was the wrong version. The platform mingw is
currently using 4.8.3, not 4.8.1 (not sure how I got that wrong).
From ftp://ftp.gnu.org/gnu/gcc/gcc-4.8.3/gcc-4.8.3.tar.bz2.
Bug: http://b/26523949
Change-Id: Id85f1bdcbbaf78c7d0b5a69e74c798a08f341c35
Diffstat (limited to 'gcc-4.8.3/gcc/testsuite/gcc.dg/pr30957-1.c')
-rw-r--r-- | gcc-4.8.3/gcc/testsuite/gcc.dg/pr30957-1.c | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/gcc-4.8.3/gcc/testsuite/gcc.dg/pr30957-1.c b/gcc-4.8.3/gcc/testsuite/gcc.dg/pr30957-1.c new file mode 100644 index 000000000..65b98fa53 --- /dev/null +++ b/gcc-4.8.3/gcc/testsuite/gcc.dg/pr30957-1.c @@ -0,0 +1,37 @@ +/* { dg-do run { xfail *-*-* } } */ +/* We don't (and don't want to) perform this optimisation on soft-float + targets, where each addition is a library call. This test requires + -fassociative-math for enabling the variable-expansion as well as + -fsigned-zeros for honoring the sign of zero; but + they can not co-exist; also under -funsafe-math-optimizations, so we + expect it to fail. */ +/* { dg-require-effective-target hard_float } */ +/* { dg-options "-O2 -funroll-loops -funsafe-math-optimizations -fvariable-expansion-in-unroller -fdump-rtl-loop2_unroll" } */ + +extern void abort (void); +extern void exit (int); + +float __attribute__((noinline)) +foo (float d, int n) +{ + unsigned i; + float accum = d; + + for (i = 0; i < n; i++) + accum += d; + + return accum; +} + +int +main () +{ + if (__builtin_copysignf (1.0, foo (0.0 / -5.0, 10)) != -1.0) + abort (); + exit (0); +} + +/* { dg-final { scan-rtl-dump "Expanding Accumulator" "loop2_unroll" } } */ +/* { dg-final { cleanup-rtl-dump "loop*" } } */ + + |