From df2ef49bbf1d8e81db688fb49ddaf7e614b71961 Mon Sep 17 00:00:00 2001 From: Alan Modra Date: Sat, 6 Dec 2003 12:22:31 +0000 Subject: re PR rtl-optimization/13169 (asm using r30 or r31 confuses global_alloc) PR 13169 * basic-block.h (PROP_ASM_SCAN): Define. * final.c (regs_asm_clobbered): New array. * regs.h (regs_asm_clobbered): Declare. * flow.c (life_analysis): Init it. (mark_set_regs): Set PROP_ASM_SCAN for asms. (mark_set_1): Set regs_asm_clobbered. * global.c (global_alloc): Don't set eliminable_regset when regs_asm_clobbered. From-SVN: r74363 --- gcc/basic-block.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'gcc/basic-block.h') diff --git a/gcc/basic-block.h b/gcc/basic-block.h index 221b246..365711a 100644 --- a/gcc/basic-block.h +++ b/gcc/basic-block.h @@ -477,6 +477,8 @@ enum update_life_extent #define PROP_AUTOINC 64 /* Create autoinc mem references. */ #define PROP_EQUAL_NOTES 128 /* Take into account REG_EQUAL notes. */ #define PROP_SCAN_DEAD_STORES 256 /* Scan for dead code. */ +#define PROP_ASM_SCAN 512 /* Internal flag used within flow.c + to flag analysis of asms. */ #define PROP_FINAL (PROP_DEATH_NOTES | PROP_LOG_LINKS \ | PROP_REG_INFO | PROP_KILL_DEAD_CODE \ | PROP_SCAN_DEAD_CODE | PROP_AUTOINC \ -- cgit v1.1