From 89ab46599d72839cb0b823baaaad4b76b384a543 Mon Sep 17 00:00:00 2001 From: Kaz Kojima Date: Tue, 10 Jul 2007 01:01:11 +0000 Subject: re PR rtl-optimization/32664 ([sh] ICE in create_pre_exit, at mode-switching.c:373) PR rtl-optimization/32664 * mode-switching.c (create_pre_exit): Skip barrier insns. From-SVN: r126507 --- gcc/mode-switching.c | 38 +++++++++++++++++++++++++++----------- 1 file changed, 27 insertions(+), 11 deletions(-) (limited to 'gcc/mode-switching.c') diff --git a/gcc/mode-switching.c b/gcc/mode-switching.c index 0e4f58c..e935acd 100644 --- a/gcc/mode-switching.c +++ b/gcc/mode-switching.c @@ -246,21 +246,37 @@ create_pre_exit (int n_entities, int *entity_map, const int *num_modes) if (INSN_P (return_copy)) { - if (GET_CODE (PATTERN (return_copy)) == USE - && GET_CODE (XEXP (PATTERN (return_copy), 0)) == REG - && (FUNCTION_VALUE_REGNO_P - (REGNO (XEXP (PATTERN (return_copy), 0))))) - { - maybe_builtin_apply = 1; - last_insn = return_copy; - continue; - } - if (GET_CODE (PATTERN (return_copy)) == ASM_INPUT - && strcmp (XSTR (PATTERN (return_copy), 0), "") == 0) + return_copy_pat = PATTERN (return_copy); + switch (GET_CODE (return_copy_pat)) { + case USE: + /* Skip __builtin_apply pattern. */ + if (GET_CODE (XEXP (return_copy_pat, 0)) == REG + && (FUNCTION_VALUE_REGNO_P + (REGNO (XEXP (return_copy_pat, 0))))) + { + maybe_builtin_apply = 1; + last_insn = return_copy; + continue; + } + break; + + case ASM_OPERANDS: + /* Skip barrier insns. */ + if (!MEM_VOLATILE_P (return_copy_pat)) + break; + + /* Fall through. */ + + case ASM_INPUT: + case UNSPEC_VOLATILE: last_insn = return_copy; continue; + + default: + break; } + /* If the return register is not (in its entirety) likely spilled, the return copy might be partially or completely optimized away. */ -- cgit v1.1