commit bfd3ea32b7d58eb3815bad2a46897f02dcee46bb
author Oliver Stannard <oliver.stannard@arm.com> Wed Oct 01 09:03:02 2014 +0000
committer Oliver Stannard <oliver.stannard@arm.com> Wed Oct 01 09:03:02 2014 +0000
tree 4352bf80a0b41f40923f516a3db1bad5dd989a9a
parent 37e4daab05c9fd2848e0cb55f6e39e9697745b3d

[ARM] Add support for Cortex-M7, FPv5-SP and FPv5-DP

The Cortex-M7 has 3 options for its FPU: none, FPv5-SP-D16 and
FPv5-DP-D16. FPv5 has the same instructions as FP-ARMv8, so it can be
modeled using the same target feature, and all double-precision
operations are already disabled by the fp-only-sp target features.

llvm-svn: 218748

clang/lib/Driver/ToolChains.cpp

diff --git a/clang/lib/Driver/ToolChains.cpp b/clang/lib/Driver/ToolChains.cpp
index 2b88817..d85a67d 100644
--- a/clang/lib/Driver/ToolChains.cpp
+++ b/clang/lib/Driver/ToolChains.cpp
@@ -137,7 +137,7 @@
     .Cases("cortex-a9", "cortex-a12", "cortex-a15", "krait", "armv7")
     .Cases("cortex-r4", "cortex-r5", "armv7r")
     .Case("cortex-m3", "armv7m")
-    .Case("cortex-m4", "armv7em")
+    .Cases("cortex-m4", "cortex-m7", "armv7em")
     .Case("swift", "armv7s")
     .Default(nullptr);
 }

clang/lib/Driver/Tools.cpp

diff --git a/clang/lib/Driver/Tools.cpp b/clang/lib/Driver/Tools.cpp
index 50c101f..99e34e4 100644
--- a/clang/lib/Driver/Tools.cpp
+++ b/clang/lib/Driver/Tools.cpp
@@ -544,6 +544,18 @@
     Features.push_back("+d16");
     Features.push_back("+fp-only-sp");
     Features.push_back("-neon");
+  } else if (FPU == "fp5-sp-d16" || FPU == "fpv5-sp-d16") {
+    Features.push_back("+fp-armv8");
+    Features.push_back("+fp-only-sp");
+    Features.push_back("+d16");
+    Features.push_back("-neon");
+    Features.push_back("-crypto");
+  } else if (FPU == "fp5-dp-d16" || FPU == "fpv5-dp-d16" ||
+             FPU == "fp5-d16" || FPU == "fpv5-d16") {
+    Features.push_back("+fp-armv8");
+    Features.push_back("+d16");
+    Features.push_back("-neon");
+    Features.push_back("-crypto");
   } else if (FPU == "fp-armv8") {
     Features.push_back("+fp-armv8");
     Features.push_back("-neon");
@@ -5340,7 +5352,7 @@
     .Cases("cortex-r4", "cortex-r5", "v7r")
     .Case("cortex-m0", "v6m")
     .Case("cortex-m3", "v7m")
-    .Case("cortex-m4", "v7em")
+    .Cases("cortex-m4", "cortex-m7", "v7em")
     .Case("swift", "v7s")
     .Case("cyclone", "v8")
     .Cases("cortex-a53", "cortex-a57", "v8")