[ARM] Fix arm_neon.h with -flax-vector-conversions=none, part 3
It's completely impossible to check that I've actually found all the
issues, due to the use of macros in arm_neon.h, but hopefully this time
it'll take more than a few hours for someone to find another issue.
I have no idea why, but apparently there's a rule that some, but not
all, builtins which should take an fp16 vector actually take an int8
vector as an argument. Fix this, and add test coverage.
Differential Revision: https://reviews.llvm.org/D68838
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@375179 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/CodeGen/aarch64-v8.2a-neon-intrinsics.c b/test/CodeGen/aarch64-v8.2a-neon-intrinsics.c
index 55e91c2..fc339fa 100644
--- a/test/CodeGen/aarch64-v8.2a-neon-intrinsics.c
+++ b/test/CodeGen/aarch64-v8.2a-neon-intrinsics.c
@@ -1,5 +1,5 @@
// RUN: %clang_cc1 -triple arm64-none-linux-gnu -target-feature +neon -target-feature +fullfp16 -target-feature +v8.2a\
-// RUN: -fallow-half-arguments-and-returns -S -disable-O0-optnone -emit-llvm -o - %s \
+// RUN: -fallow-half-arguments-and-returns -flax-vector-conversions=none -S -disable-O0-optnone -emit-llvm -o - %s \
// RUN: | opt -S -mem2reg \
// RUN: | FileCheck %s
diff --git a/utils/TableGen/NeonEmitter.cpp b/utils/TableGen/NeonEmitter.cpp
index 2cf7d90..9d668a2 100644
--- a/utils/TableGen/NeonEmitter.cpp
+++ b/utils/TableGen/NeonEmitter.cpp
@@ -1442,7 +1442,8 @@
}
// Check if an explicit cast is needed.
- if (CastToType.isVector() && LocalCK == ClassB) {
+ if (CastToType.isVector() &&
+ (LocalCK == ClassB || (T.isHalf() && !T.isScalarForMangling()))) {
CastToType.makeInteger(8, true);
Arg = "(" + CastToType.str() + ")" + Arg;
} else if (CastToType.isVector() && LocalCK == ClassI) {
