[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 eae158f0d5f05458a8612b64824caf4192975de5..484a83a494ecd399844ef14162674f8b2394d43b 100644 (file)
--- 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 bf981076a18ac6a96b5cf73c66d3be44cc87b386..ef0c022ac0e274584f0b1dc0dbb363ec34226362 100644 (file)
--- 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