From 078b5aab3875630d6b09cac4ea4408ef9ba04a00 Mon Sep 17 00:00:00 2001 From: Richard Biener Date: Tue, 4 Oct 2016 13:40:54 +0000 Subject: re PR tree-optimization/77399 (Poor code generation for vector casts and loads) 2016-10-04 Richard Biener PR tree-optimization/77399 * tree-ssa-forwprop.c (simplify_vector_constructor): Properly verify the target can convert. * gcc.dg/tree-ssa/forwprop-35.c: Adjust. From-SVN: r240744 --- gcc/tree-ssa-forwprop.c | 8 ++++++++ 1 file changed, 8 insertions(+) (limited to 'gcc/tree-ssa-forwprop.c') diff --git a/gcc/tree-ssa-forwprop.c b/gcc/tree-ssa-forwprop.c index cd066ef..ed11b32 100644 --- a/gcc/tree-ssa-forwprop.c +++ b/gcc/tree-ssa-forwprop.c @@ -45,6 +45,7 @@ along with GCC; see the file COPYING3. If not see #include "builtins.h" #include "tree-cfgcleanup.h" #include "cfganal.h" +#include "optabs-tree.h" /* This pass propagates the RHS of assignment statements into use sites of the LHS of the assignment. It's basically a specialized @@ -2037,6 +2038,13 @@ simplify_vector_constructor (gimple_stmt_iterator *gsi) != TYPE_VECTOR_SUBPARTS (TREE_TYPE (orig)))) return false; + tree tem; + if (conv_code != ERROR_MARK + && (! supportable_convert_operation (conv_code, type, TREE_TYPE (orig), + &tem, &conv_code) + || conv_code == CALL_EXPR)) + return false; + if (maybe_ident) { if (conv_code == ERROR_MARK) -- cgit v1.1