From 2c74fb2bf089989bff9918b995397df004a4c406 Mon Sep 17 00:00:00 2001 From: Andreas Schwab Date: Wed, 30 Dec 1998 21:51:53 +0000 Subject: [PATCH] loop.c (check_dbra_loop): While reversing the loop... * loop.c (check_dbra_loop): While reversing the loop, if the comparison value has a VOID mode use the mode of the other operand to compute the mask. From-SVN: r24444 --- gcc/ChangeLog | 6 ++++++ gcc/loop.c | 8 ++++++-- 2 files changed, 12 insertions(+), 2 deletions(-) diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 9f2789645e2..015af043b58 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,9 @@ +1998-12-30 Andreas Schwab + + * loop.c (check_dbra_loop): While reversing the loop, if the + comparison value has a VOID mode use the mode of the other operand + to compute the mask. + Wed Dec 30 22:24:00 1998 Michael Meissner * rs6000.md ({save,restore}_stack_function): Take 2 operands to diff --git a/gcc/loop.c b/gcc/loop.c index 082fc817060..f1cdd033185 100644 --- a/gcc/loop.c +++ b/gcc/loop.c @@ -6857,8 +6857,12 @@ check_dbra_loop (loop_end, insn_count, loop_start, loop_info) add_val = INTVAL (bl->biv->add_val); comparison_value = XEXP (comparison, 1); - comparison_const_width - = GET_MODE_BITSIZE (GET_MODE (XEXP (comparison, 1))); + if (GET_MODE (comparison_value) == VOIDmode) + comparison_const_width + = GET_MODE_BITSIZE (GET_MODE (XEXP (comparison, 0))); + else + comparison_const_width + = GET_MODE_BITSIZE (GET_MODE (comparison_value)); if (comparison_const_width > HOST_BITS_PER_WIDE_INT) comparison_const_width = HOST_BITS_PER_WIDE_INT; comparison_sign_mask -- 2.30.2