http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52656
Bug #: 52656 Summary: [4.8 regression] gcc.target/sparc/fpmul-2.c FAILs Classification: Unclassified Product: gcc Version: 4.8.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: middle-end AssignedTo: unassig...@gcc.gnu.org ReportedBy: r...@gcc.gnu.org CC: ebotca...@gcc.gnu.org, rgue...@gcc.gnu.org Host: sparc-sun-solaris2* Target: sparc-sun-solaris2* Build: sparc-sun-solaris2* As initially mentioned in PR testsuite/52614, gcc.target/sparc/fpmul-2.c has recently started to fail: FAIL: gcc.target/sparc/fpmul-2.c scan-tree-dump optimized "{ 2, 4, 6, 8 }" It turned out that the failure is unrelated to the other ones, and a reghunt revealed the culprit patch: 2012-03-16 Richard Guenther <rguent...@suse.de> * tree.h (TREE_VECTOR_CST_ELTS): Remove. (VECTOR_CST_NELTS, VECTOR_CST_ELTS, VECTOR_CST_ELT): New defines. (struct tree_vector): Remove elements member, add variable size elts array member. (build_vector_stat): Declare. (build_vector): Define in terms of build_vector_stat. [...] * config/sparc/sparc.c (sparc_handle_vis_mul8x16): Adjust interface and implementation. (sparc_fold_builtin): Adjust. Here's the change in the optimized dumps: > diff -u 23[45]/gcc/fpmul-2.c*|more --- 234/gcc/fpmul-2.c.149t.optimized 2012-03-21 14:58:58.358234100 +0100 +++ 235/gcc/fpmul-2.c.149t.optimized 2012-03-21 16:18:28.973592400 +0100 @@ -48,7 +48,7 @@ foo3 () { <bb 2>: - return { 2, 4, 6, 8 }; + return { 1, 2, 3, 4 }; } Rainer