From 554fd8c5195424bdbcabf5de30fdc183aba391bd Mon Sep 17 00:00:00 2001 From: upstream source tree Date: Sun, 15 Mar 2015 20:14:05 -0400 Subject: obtained gcc-4.6.4.tar.bz2 from upstream website; verified gcc-4.6.4.tar.bz2.sig; imported gcc-4.6.4 source tree from verified upstream tarball. downloading a git-generated archive based on the 'upstream' tag should provide you with a source tree that is binary identical to the one extracted from the above tarball. if you have obtained the source via the command 'git clone', however, do note that line-endings of files in your working directory might differ from line-endings of the respective files in the upstream repository. --- gcc/testsuite/gcc.dg/tree-ssa/ssa-fre-13.c | 27 +++++++++++++++++++++++++++ 1 file changed, 27 insertions(+) create mode 100644 gcc/testsuite/gcc.dg/tree-ssa/ssa-fre-13.c (limited to 'gcc/testsuite/gcc.dg/tree-ssa/ssa-fre-13.c') diff --git a/gcc/testsuite/gcc.dg/tree-ssa/ssa-fre-13.c b/gcc/testsuite/gcc.dg/tree-ssa/ssa-fre-13.c new file mode 100644 index 000000000..972e6c69e --- /dev/null +++ b/gcc/testsuite/gcc.dg/tree-ssa/ssa-fre-13.c @@ -0,0 +1,27 @@ +/* { dg-do compile } */ +/* { dg-options "-O -fstrict-aliasing -fno-tree-sra -fdump-tree-fre-details" } */ + +/* Should be optimized, propagating &a into (*p)[i]. */ + +/* For this testcase we need TBAA to work. */ + +struct Foo +{ + void *data; + int size; +}; +void foo(double (*q)[4], struct Foo *tmp1) +{ + double a[4]; + int i; + tmp1->data = &a; + tmp1->size = 4; + for (i=0; i<4; ++i) + { + double (*p)[4] = tmp1->data; + (*p)[i] = (*q)[i]; + } +} + +/* { dg-final { scan-tree-dump "Replaced tmp1_.\\\(D\\\)->data with &a" "fre" } } */ +/* { dg-final { cleanup-tree-dump "fre" } } */ -- cgit v1.2.3