From 1bc5aee63eb72b341f506ad058502cd0361f0d10 Mon Sep 17 00:00:00 2001 From: Ben Cheng Date: Tue, 25 Mar 2014 22:37:19 -0700 Subject: Initial checkin of GCC 4.9.0 from trunk (r208799). Change-Id: I48a3c08bb98542aa215912a75f03c0890e497dba --- gcc-4.9/gcc/testsuite/gcc.dg/pr50717-1.c | 26 ++++++++++++++++++++++++++ 1 file changed, 26 insertions(+) create mode 100644 gcc-4.9/gcc/testsuite/gcc.dg/pr50717-1.c (limited to 'gcc-4.9/gcc/testsuite/gcc.dg/pr50717-1.c') diff --git a/gcc-4.9/gcc/testsuite/gcc.dg/pr50717-1.c b/gcc-4.9/gcc/testsuite/gcc.dg/pr50717-1.c new file mode 100644 index 000000000..afbe542a2 --- /dev/null +++ b/gcc-4.9/gcc/testsuite/gcc.dg/pr50717-1.c @@ -0,0 +1,26 @@ +/* PR tree-optimization/50717 */ +/* Ensure that widening multiply-and-accumulate is not used where integer + type promotion or users' casts should prevent it. */ + +/* { dg-options "-O2 -fdump-tree-widening_mul" } */ + +long long +f (unsigned int a, char b, long long c) +{ + return (a * b) + c; +} + +int +g (short a, short b, int c) +{ + return (short)(a * b) + c; +} + +int +h (char a, char b, int c) +{ + return (char)(a * b) + c; +} + +/* { dg-final { scan-tree-dump-times "WIDEN_MULT_PLUS_EXPR" 0 "widening_mul" } } */ +/* { dg-final { cleanup-tree-dump "widening_mul" } } */ -- cgit v1.2.3