diff options
Diffstat (limited to 'gcc/expr.c')
| -rw-r--r-- | gcc/expr.c | 33 |
1 files changed, 7 insertions, 26 deletions
@@ -9912,43 +9912,24 @@ expand_expr_real_1 (tree exp, rtx target, machine_mode tmode, && GET_MODE (decl_rtl) != dmode) { machine_mode pmode; - bool always_initialized_rtx; /* Get the signedness to be used for this variable. Ensure we get the same mode we got when the variable was declared. */ if (code != SSA_NAME) - { - pmode = promote_decl_mode (exp, &unsignedp); - always_initialized_rtx = true; - } + pmode = promote_decl_mode (exp, &unsignedp); else if ((g = SSA_NAME_DEF_STMT (ssa_name)) && gimple_code (g) == GIMPLE_CALL && !gimple_call_internal_p (g)) - { - pmode = promote_function_mode (type, mode, &unsignedp, - gimple_call_fntype (g), 2); - always_initialized_rtx - = always_initialized_rtx_for_ssa_name_p (ssa_name); - } + pmode = promote_function_mode (type, mode, &unsignedp, + gimple_call_fntype (g), + 2); else - { - pmode = promote_ssa_mode (ssa_name, &unsignedp); - always_initialized_rtx - = always_initialized_rtx_for_ssa_name_p (ssa_name); - } - + pmode = promote_ssa_mode (ssa_name, &unsignedp); gcc_assert (GET_MODE (decl_rtl) == pmode); temp = gen_lowpart_SUBREG (mode, decl_rtl); - - /* We cannot assume anything about an existing extension if the - register may contain uninitialized bits. */ - if (always_initialized_rtx) - { - SUBREG_PROMOTED_VAR_P (temp) = 1; - SUBREG_PROMOTED_SET (temp, unsignedp); - } - + SUBREG_PROMOTED_VAR_P (temp) = 1; + SUBREG_PROMOTED_SET (temp, unsignedp); return temp; } |