Correct order of operands forwarding NEON vfma to LLVM fma

llvm-svn: 172650

1 files changed, 16 insertions, 0 deletions

diff --git a/clang/test/CodeGen/arm-neon-fma.c b/clang/test/CodeGen/arm-neon-fma.c
new file mode 100644
index 00000000000..7511fe16c6b
--- /dev/null
+++ b/clang/test/CodeGen/arm-neon-fma.c
@@ -0,0 +1,16 @@
+// REQUIRES: arm-registered-target
+// RUN: %clang -target thumbv7-none-linux-gnueabihf \
+// RUN:   -mcpu=cortex-a8 -mfloat-abi=hard \
+// RUN:   -O3 -S -emit-llvm -o - %s | FileCheck %s
+
+#include <arm_neon.h>
+
+float32x2_t test_fma_order(float32x2_t accum, float32x2_t lhs, float32x2_t rhs) {
+  return vfma_f32(accum, lhs, rhs);
+// CHECK: call <2 x float> @llvm.fma.v2f32(<2 x float> %lhs, <2 x float> %rhs, <2 x float> %accum)
+}
+
+float32x4_t test_fmaq_order(float32x4_t accum, float32x4_t lhs, float32x4_t rhs) {
+  return vfmaq_f32(accum, lhs, rhs);
+// CHECK: call <4 x float> @llvm.fma.v4f32(<4 x float> %lhs, <4 x float> %rhs, <4 x float> %accum)
+}