From 8b0b9aefd29dfe6398857bcf5628662e2f0e21f6 Mon Sep 17 00:00:00 2001 From: Richard Henderson Date: Sat, 18 Dec 2004 19:51:36 -0800 Subject: [PATCH] c-decl.c (grokdeclarator): Save variable array size before subtracting 1, rather than after. * c-decl.c (grokdeclarator): Save variable array size before subtracting 1, rather than after. From-SVN: r92370 --- gcc/ChangeLog | 5 +++++ gcc/c-decl.c | 8 ++++++-- 2 files changed, 11 insertions(+), 2 deletions(-) diff --git a/gcc/ChangeLog b/gcc/ChangeLog index e72b84756492..51ad04e5266e 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,8 @@ +2004-12-18 Richard Henderson + + * c-decl.c (grokdeclarator): Save variable array size before + subtracting 1, rather than after. + 2004-12-18 Eric Botcazou PR middle-end/15486 diff --git a/gcc/c-decl.c b/gcc/c-decl.c index b728a6b3faae..b76e2746d99a 100644 --- a/gcc/c-decl.c +++ b/gcc/c-decl.c @@ -4084,6 +4084,12 @@ grokdeclarator (const struct c_declarator *declarator, } else { + /* Arrange for the SAVE_EXPR on the inside of the + MINUS_EXPR, which allows the -1 to get folded + with the +1 that happens when building TYPE_SIZE. */ + if (size_varies) + size = variable_size (size); + /* Compute the maximum valid index, that is, size - 1. Do the calculation in index_type, so that if it is a variable the computations will be @@ -4107,8 +4113,6 @@ grokdeclarator (const struct c_declarator *declarator, continue; } - if (size_varies) - itype = variable_size (itype); itype = build_index_type (itype); } } -- 2.47.2