Added flag to disable isel instruction on PPC target. Using regular branches instead of isel is more efficient in some cases.
llvm-svn: 234509
diff --git a/clang/include/clang/Driver/Options.td b/clang/include/clang/Driver/Options.td
index 45729cf..ee50186 100644
--- a/clang/include/clang/Driver/Options.td
+++ b/clang/include/clang/Driver/Options.td
@@ -1274,6 +1274,8 @@
def mno_fprnd : Flag<["-"], "mno-fprnd">, Group<m_ppc_Features_Group>;
def mcmpb : Flag<["-"], "mcmpb">, Group<m_ppc_Features_Group>;
def mno_cmpb : Flag<["-"], "mno-cmpb">, Group<m_ppc_Features_Group>;
+def misel : Flag<["-"], "misel">, Group<m_ppc_Features_Group>;
+def mno_isel : Flag<["-"], "mno-isel">, Group<m_ppc_Features_Group>;
def mmfcrf : Flag<["-"], "mmfcrf">, Group<m_ppc_Features_Group>;
def mno_mfcrf : Flag<["-"], "mno-mfcrf">, Group<m_ppc_Features_Group>;
def mpopcntd : Flag<["-"], "mpopcntd">, Group<m_ppc_Features_Group>;
diff --git a/clang/test/Driver/ppc-features.cpp b/clang/test/Driver/ppc-features.cpp
index 39d6357..8ef8318 100644
--- a/clang/test/Driver/ppc-features.cpp
+++ b/clang/test/Driver/ppc-features.cpp
@@ -77,6 +77,12 @@
// RUN: %clang -target powerpc64-unknown-linux-gnu %s -mno-mfcrf -mmfcrf -### -o %t.o 2>&1 | FileCheck -check-prefix=CHECK-MFCRF %s
// CHECK-MFCRF: "-target-feature" "+mfocrf"
+// RUN: %clang -target powerpc64-unknown-linux-gnu %s -mno-isel -### -o %t.o 2>&1 | FileCheck -check-prefix=CHECK-NOISEL %s
+// CHECK-NOISEL: "-target-feature" "-isel"
+
+// RUN: %clang -target powerpc64-unknown-linux-gnu %s -mno-isel -misel -### -o %t.o 2>&1 | FileCheck -check-prefix=CHECK-ISEL %s
+// CHECK-ISEL: "-target-feature" "+isel"
+
// RUN: %clang -target powerpc64-unknown-linux-gnu %s -mno-popcntd -### -o %t.o 2>&1 | FileCheck -check-prefix=CHECK-NOPOPCNTD %s
// CHECK-NOPOPCNTD: "-target-feature" "-popcntd"