From a70770d2d5760af79dd42b8d36b6c10ea2d97053 Mon Sep 17 00:00:00 2001 From: ebotcazou Date: Thu, 13 Dec 2007 21:49:09 +0000 Subject: PR middle-end/33088 * gimplify.c (gimplify_modify_expr_complex_part): Add note to comment. * tree-complex.c (init_dont_simulate_again): Return true if there are uninitialized loads generated by gimplify_modify_expr_complex_part. * tree-gimple.c (is_gimple_reg_type): Return false for complex types if not optimizing. * tree-ssa.c (ssa_undefined_value_p): New predicate extracted from... (warn_uninit): ...here. Use ssa_undefined_value_p. * tree-ssa-pre.c (is_undefined_value): Delete. (phi_translate_1): Use ssa_undefined_value_p. (add_to_exp_gen): Likewise. (make_values_for_stmt): Likewise. * tree-flow.h (ssa_undefined_value_p): Declare. git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@130917 138bc75d-0d04-0410-961f-82ee72b054a4 --- gcc/tree-complex.c | 11 +++++++++++ 1 file changed, 11 insertions(+) (limited to 'gcc/tree-complex.c') diff --git a/gcc/tree-complex.c b/gcc/tree-complex.c index 693c8c99347..a1964ee6813 100644 --- a/gcc/tree-complex.c +++ b/gcc/tree-complex.c @@ -246,6 +246,17 @@ init_dont_simulate_again (void) saw_a_complex_op = true; break; + case REALPART_EXPR: + case IMAGPART_EXPR: + /* The total store transformation performed during + gimplification creates such uninitialized loads + and we need to lower the statement to be able + to fix things up. */ + if (TREE_CODE (TREE_OPERAND (rhs, 0)) == SSA_NAME + && ssa_undefined_value_p (TREE_OPERAND (rhs, 0))) + saw_a_complex_op = true; + break; + default: break; } -- cgit v1.2.1