From: Craig Topper <craig.topper@intel.com>
Date: Fri, 26 Jan 2018 19:34:45 +0000 (+0000)
Subject: [X86] Add 'rdrnd' feature to silvermont to match recent gcc bug fix.
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=679d846fcc73bd213347785185006d591698a132;p=clang

[X86] Add 'rdrnd' feature to silvermont to match recent gcc bug fix.

gcc recently fixed this bug https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83546

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@323552 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/Basic/Targets/X86.cpp b/lib/Basic/Targets/X86.cpp
index eae158f0d5..484a83a494 100644
--- a/lib/Basic/Targets/X86.cpp
+++ b/lib/Basic/Targets/X86.cpp
@@ -239,7 +239,6 @@ bool X86TargetInfo::initFeatureMap(
 
   case CK_Goldmont:
     setFeatureEnabledImpl(Features, "sha", true);
-    setFeatureEnabledImpl(Features, "rdrnd", true);
     setFeatureEnabledImpl(Features, "rdseed", true);
     setFeatureEnabledImpl(Features, "xsave", true);
     setFeatureEnabledImpl(Features, "xsaveopt", true);
@@ -250,6 +249,7 @@ bool X86TargetInfo::initFeatureMap(
     setFeatureEnabledImpl(Features, "fsgsbase", true);
     LLVM_FALLTHROUGH;
   case CK_Silvermont:
+    setFeatureEnabledImpl(Features, "rdrnd", true);
     setFeatureEnabledImpl(Features, "aes", true);
     setFeatureEnabledImpl(Features, "pclmul", true);
     setFeatureEnabledImpl(Features, "sse4.2", true);
diff --git a/test/Preprocessor/predefined-arch-macros.c b/test/Preprocessor/predefined-arch-macros.c
index bf981076a1..ef0c022ac0 100644
--- a/test/Preprocessor/predefined-arch-macros.c
+++ b/test/Preprocessor/predefined-arch-macros.c
@@ -1272,6 +1272,7 @@
 // CHECK_SLM_M32: #define __PCLMUL__ 1
 // CHECK_SLM_M32: #define __POPCNT__ 1
 // CHECK_SLM_M32: #define __PRFCHW__ 1
+// CHECK_SLM_M32: #define __RDRND__ 1
 // CHECK_SLM_M32: #define __SSE2__ 1
 // CHECK_SLM_M32: #define __SSE3__ 1
 // CHECK_SLM_M32: #define __SSE4_1__ 1
@@ -1293,6 +1294,7 @@
 // CHECK_SLM_M64: #define __PCLMUL__ 1
 // CHECK_SLM_M64: #define __POPCNT__ 1
 // CHECK_SLM_M64: #define __PRFCHW__ 1
+// CHECK_SLM_M64: #define __RDRND__ 1
 // CHECK_SLM_M64: #define __SSE2_MATH__ 1
 // CHECK_SLM_M64: #define __SSE2__ 1
 // CHECK_SLM_M64: #define __SSE3__ 1