From 1974bfb11f1d4a6326523185f9370b3b3a590f4e Mon Sep 17 00:00:00 2001 From: Richard Kenner Date: Thu, 24 Apr 1997 16:39:21 -0400 Subject: [PATCH] (pushcase_range): Check for null range first. From-SVN: r13977 --- gcc/stmt.c | 14 +++++++------- 1 file changed, 7 insertions(+), 7 deletions(-) diff --git a/gcc/stmt.c b/gcc/stmt.c index 04eaaff..01747b0 100644 --- a/gcc/stmt.c +++ b/gcc/stmt.c @@ -1,5 +1,5 @@ /* Expands front end tree to back end RTL for GNU C-Compiler - Copyright (C) 1987, 88, 89, 92-5, 1996 Free Software Foundation, Inc. + Copyright (C) 1987, 88, 89, 92-6, 1997 Free Software Foundation, Inc. This file is part of GNU CC. @@ -4410,6 +4410,10 @@ pushcase (value, converter, label, duplicate) if (! (case_stack && case_stack->data.case_stmt.start)) return 1; + /* Fail if the range is empty. */ + if (tree_int_cst_lt (value2, value1)) + return 4; + if (stack_block_stack && stack_block_stack->depth > case_stack->depth) return 5; @@ -4524,11 +4528,11 @@ pushcase_range (value1, value2, converter, label, duplicate) /* Convert VALUEs to type in which the comparisons are nominally done. */ if (value1 == 0) /* Negative infinity. */ - value1 = TYPE_MIN_VALUE(index_type); + value1 = TYPE_MIN_VALUE (index_type); value1 = (*converter) (nominal_type, value1); if (value2 == 0) /* Positive infinity. */ - value2 = TYPE_MAX_VALUE(index_type); + value2 = TYPE_MAX_VALUE (index_type); value2 = (*converter) (nominal_type, value2); /* Fail if these values are out of range. */ @@ -4538,10 +4542,6 @@ pushcase_range (value1, value2, converter, label, duplicate) if (! int_fits_type_p (value2, index_type)) return 3; - /* Fail if the range is empty. */ - if (tree_int_cst_lt (value2, value1)) - return 4; - return add_case_node (value1, value2, label, duplicate); } -- 2.7.4