From 3a0837b8fb96f50f2e60222ce289cc2542bbb477 Mon Sep 17 00:00:00 2001 From: Sandra Loosemore Date: Tue, 18 Jan 2022 09:27:36 -0800 Subject: [PATCH] middle-end: move initialization of stack_limit_rtx [PR103163] stack_limit_rtx was being initialized before init_reg_modes_target (), resulting in the REG expression being created incorrectly and an ICE later in compilation. 2022-01-18 Sandra Loosemore PR middle-end/103163 gcc/ * emit-rtl.cc (init_emit_regs): Initialize stack_limit_rtx here... (init_emit_once): ...not here. --- gcc/emit-rtl.cc | 14 +++++++------- 1 file changed, 7 insertions(+), 7 deletions(-) diff --git a/gcc/emit-rtl.cc b/gcc/emit-rtl.cc index 079e563..3260ca8 100644 --- a/gcc/emit-rtl.cc +++ b/gcc/emit-rtl.cc @@ -6097,6 +6097,13 @@ init_emit_regs (void) if ((unsigned) PIC_OFFSET_TABLE_REGNUM != INVALID_REGNUM) pic_offset_table_rtx = gen_raw_REG (Pmode, PIC_OFFSET_TABLE_REGNUM); + /* Process stack-limiting command-line options. */ + if (opt_fstack_limit_symbol_arg != NULL) + stack_limit_rtx + = gen_rtx_SYMBOL_REF (Pmode, ggc_strdup (opt_fstack_limit_symbol_arg)); + if (opt_fstack_limit_register_no >= 0) + stack_limit_rtx = gen_rtx_REG (Pmode, opt_fstack_limit_register_no); + for (i = 0; i < (int) MAX_MACHINE_MODE; i++) { mode = (machine_mode) i; @@ -6177,13 +6184,6 @@ init_emit_once (void) /* Create the unique rtx's for certain rtx codes and operand values. */ - /* Process stack-limiting command-line options. */ - if (opt_fstack_limit_symbol_arg != NULL) - stack_limit_rtx - = gen_rtx_SYMBOL_REF (Pmode, ggc_strdup (opt_fstack_limit_symbol_arg)); - if (opt_fstack_limit_register_no >= 0) - stack_limit_rtx = gen_rtx_REG (Pmode, opt_fstack_limit_register_no); - /* Don't use gen_rtx_CONST_INT here since gen_rtx_CONST_INT in this case tries to use these variables. */ for (i = - MAX_SAVED_CONST_INT; i <= MAX_SAVED_CONST_INT; i++) -- 2.7.4