From 1d9fec7937f45dde5e04cac966a2d9a12f2fc15a Mon Sep 17 00:00:00 2001 From: Yiran Wang Date: Tue, 23 Jun 2015 15:33:17 -0700 Subject: Synchronize with google/gcc-4_9 to r224707 (from r214835) Change-Id: I3d6f06fc613c8f8b6a82143dc44b7338483aac5d --- gcc-4.9/gcc/testsuite/gcc.target/aarch64/pr62262.c | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+) (limited to 'gcc-4.9/gcc/testsuite/gcc.target/aarch64/pr62262.c') diff --git a/gcc-4.9/gcc/testsuite/gcc.target/aarch64/pr62262.c b/gcc-4.9/gcc/testsuite/gcc.target/aarch64/pr62262.c index 5bf90bf..20763b4 100644 --- a/gcc-4.9/gcc/testsuite/gcc.target/aarch64/pr62262.c +++ b/gcc-4.9/gcc/testsuite/gcc.target/aarch64/pr62262.c @@ -18,3 +18,23 @@ int foo(int value) int packed = (unsigned)(value << 9) >> 9; return packed; } +/* { dg-do compile } */ +/* { dg-options "-O2 -fprofile-use" } */ + +static inline int CLZ(int mask) { + return mask ? __builtin_clz(mask) : 32; +} + +int foo(int value) +{ + if (value == 0) + return 0; + + int bias = CLZ(value); + value >>= bias; + int zeros = CLZ(value << 1); + value <<= zeros; + + int packed = (unsigned)(value << 9) >> 9; + return packed; +} -- cgit v1.1