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-rw-r--r--test/CodeGen/ARM/neon_fpconv.ll9
1 files changed, 9 insertions, 0 deletions
diff --git a/test/CodeGen/ARM/neon_fpconv.ll b/test/CodeGen/ARM/neon_fpconv.ll
new file mode 100644
index 0000000..f80ea3e
--- /dev/null
+++ b/test/CodeGen/ARM/neon_fpconv.ll
@@ -0,0 +1,9 @@
+; RUN: llc < %s -march=arm -mattr=+neon | FileCheck %s
+
+; PR12540: ARM backend lowering of FP_ROUND v2f64 to v2f32.
+define <2 x float> @vtrunc(<2 x double> %a) {
+; CHECK: vcvt.f32.f64 [[S0:s[0-9]+]], [[D0:d[0-9]+]]
+; CHECK: vcvt.f32.f64 [[S1:s[0-9]+]], [[D1:d[0-9]+]]
+ %vt = fptrunc <2 x double> %a to <2 x float>
+ ret <2 x float> %vt
+}