From 71639485e7b113d9542bcb555d4430d90711fadc Mon Sep 17 00:00:00 2001 From: Sebastian Peryt Date: Mon, 15 Jan 2018 14:32:40 +0300 Subject: [PATCH] PR83546 --- gcc/config/i386/i386.c | 2 +- gcc/testsuite/gcc.target/i386/pr83546.c | 18 ++++++++++++++++++ 2 files changed, 19 insertions(+), 1 deletion(-) create mode 100644 gcc/testsuite/gcc.target/i386/pr83546.c diff --git a/gcc/config/i386/i386.c b/gcc/config/i386/i386.c index 9ac4ad6..9f18e84 100644 --- a/gcc/config/i386/i386.c +++ b/gcc/config/i386/i386.c @@ -3474,7 +3474,7 @@ ix86_option_override_internal (bool main_args_p, #define PTA_BONNELL \ (PTA_CORE2 | PTA_MOVBE) #define PTA_SILVERMONT \ - (PTA_WESTMERE | PTA_MOVBE) + (PTA_WESTMERE | PTA_MOVBE | PTA_RDRND) #define PTA_KNM \ (PTA_KNL | PTA_AVX5124VNNIW | PTA_AVX5124FMAPS | PTA_AVX512VPOPCNTDQ) diff --git a/gcc/testsuite/gcc.target/i386/pr83546.c b/gcc/testsuite/gcc.target/i386/pr83546.c new file mode 100644 index 0000000..fe00daa --- /dev/null +++ b/gcc/testsuite/gcc.target/i386/pr83546.c @@ -0,0 +1,18 @@ +/* PR target/83546 */ +/* { dg-do compile } */ +/* { dg-options "-O2 -march=silvermont" } */ + +int test (void) +{ + unsigned int number = 0; + int result0, result1, result2, result3; + + result0 = __builtin_ia32_rdrand32_step (&number); + result1 = __builtin_ia32_rdrand32_step (&number); + result2 = __builtin_ia32_rdrand32_step (&number); + result3 = __builtin_ia32_rdrand32_step (&number); + + return result0 + result1 +result2 + result3; +} + +/* { dg-final { scan-assembler-times "rdrand" 4 } } */ -- 2.5.5