From 65d2fe43e62f6c1918df62bcc01f8c74af5d88ac Mon Sep 17 00:00:00 2001 From: rask Date: Wed, 25 Jul 2007 11:13:41 +0000 Subject: [PATCH] * gcc.dg/tree-ssa/predcom-1.c (count_averages): Avoid overflow during addition if an int is only 16 bits wide. * gcc.dg/tree-ssa/predcom-2.c (fib): Avoid overflow of 16-bit int. git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@126908 138bc75d-0d04-0410-961f-82ee72b054a4 --- gcc/testsuite/ChangeLog | 6 ++++++ gcc/testsuite/gcc.dg/tree-ssa/predcom-1.c | 2 +- gcc/testsuite/gcc.dg/tree-ssa/predcom-2.c | 2 +- 3 files changed, 8 insertions(+), 2 deletions(-) diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog index 057c0ca..d7ab831 100644 --- a/gcc/testsuite/ChangeLog +++ b/gcc/testsuite/ChangeLog @@ -1,5 +1,11 @@ 2007-07-25 Rask Ingemann Lambertsen + * gcc.dg/tree-ssa/predcom-1.c (count_averages): Avoid overflow + during addition if an int is only 16 bits wide. + * gcc.dg/tree-ssa/predcom-2.c (fib): Avoid overflow of 16-bit int. + +2007-07-25 Rask Ingemann Lambertsen + * gcc.dg/torture/pr29584.c: Only run test if pointers have the same size as "long int" and are 32 or 64 bits wide. * gcc.dg/torture/pr28814.c: Likewise. diff --git a/gcc/testsuite/gcc.dg/tree-ssa/predcom-1.c b/gcc/testsuite/gcc.dg/tree-ssa/predcom-1.c index 8e6e897..584f9eb 100644 --- a/gcc/testsuite/gcc.dg/tree-ssa/predcom-1.c +++ b/gcc/testsuite/gcc.dg/tree-ssa/predcom-1.c @@ -23,7 +23,7 @@ void count_averages(int n) int i; for (i = 1; i < n; i++) - avg[i] = ((fib[i - 1] + fib[i] + fib[i + 1]) / 3) & 0xffff; + avg[i] = (((unsigned long) fib[i - 1] + fib[i] + fib[i + 1]) / 3) & 0xffff; } int main(void) diff --git a/gcc/testsuite/gcc.dg/tree-ssa/predcom-2.c b/gcc/testsuite/gcc.dg/tree-ssa/predcom-2.c index b7088c5..3ad13ea 100644 --- a/gcc/testsuite/gcc.dg/tree-ssa/predcom-2.c +++ b/gcc/testsuite/gcc.dg/tree-ssa/predcom-2.c @@ -4,7 +4,7 @@ void abort (void); -int fib[1000]; +long int fib[1000]; void count_fib(void) { -- 2.7.4