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| author | Ben Cheng <bccheng@google.com> | 2014-03-25 22:37:19 -0700 |
|---|---|---|
| committer | Ben Cheng <bccheng@google.com> | 2014-03-25 22:37:19 -0700 |
| commit | 1bc5aee63eb72b341f506ad058502cd0361f0d10 (patch) | |
| tree | c607e8252f3405424ff15bc2d00aa38dadbb2518 /gcc-4.9/gcc/testsuite/gcc.dg/pr50717-1.c | |
| parent | 283a0bf58fcf333c58a2a92c3ebbc41fb9eb1fdb (diff) | |
| download | toolchain_gcc-1bc5aee63eb72b341f506ad058502cd0361f0d10.tar.gz toolchain_gcc-1bc5aee63eb72b341f506ad058502cd0361f0d10.tar.bz2 toolchain_gcc-1bc5aee63eb72b341f506ad058502cd0361f0d10.zip | |
Initial checkin of GCC 4.9.0 from trunk (r208799).
Change-Id: I48a3c08bb98542aa215912a75f03c0890e497dba
Diffstat (limited to 'gcc-4.9/gcc/testsuite/gcc.dg/pr50717-1.c')
| -rw-r--r-- | gcc-4.9/gcc/testsuite/gcc.dg/pr50717-1.c | 26 |
1 files changed, 26 insertions, 0 deletions
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" } } */ |