From 222e2a7620e6520ffaf4fc4e69d79c18da31542e Mon Sep 17 00:00:00 2001
From: "Zancanaro; Carlo" <czan8762@plang3.cs.usyd.edu.au>
Date: Mon, 24 Sep 2012 09:58:17 +1000
Subject: Add the clang library to the repo (with some of my changes, too).

---
 clang/test/CodeGen/arm-aapcs-vfp.c | 82 ++++++++++++++++++++++++++++++++++++++
 1 file changed, 82 insertions(+)
 create mode 100644 clang/test/CodeGen/arm-aapcs-vfp.c

(limited to 'clang/test/CodeGen/arm-aapcs-vfp.c')

diff --git a/clang/test/CodeGen/arm-aapcs-vfp.c b/clang/test/CodeGen/arm-aapcs-vfp.c
new file mode 100644
index 0000000..017c145
--- /dev/null
+++ b/clang/test/CodeGen/arm-aapcs-vfp.c
@@ -0,0 +1,82 @@
+// RUN: %clang_cc1 -triple thumbv7-apple-darwin9 \
+// RUN:   -target-abi aapcs \
+// RUN:   -target-cpu cortex-a8 \
+// RUN:   -mfloat-abi hard \
+// RUN:   -ffreestanding \
+// RUN:   -emit-llvm -w -o - %s | FileCheck %s
+
+#include <arm_neon.h>
+
+struct homogeneous_struct {
+  float f[2];
+  float f3;
+  float f4;
+};
+// CHECK: define arm_aapcs_vfpcc %struct.homogeneous_struct @test_struct(float %{{.*}}, float %{{.*}}, float %{{.*}}, float %{{.*}})
+extern struct homogeneous_struct struct_callee(struct homogeneous_struct);
+struct homogeneous_struct test_struct(struct homogeneous_struct arg) {
+  return struct_callee(arg);
+}
+
+struct nested_array {
+  double d[4];
+};
+// CHECK: define arm_aapcs_vfpcc void @test_array(double %{{.*}}, double %{{.*}}, double %{{.*}}, double %{{.*}})
+extern void array_callee(struct nested_array);
+void test_array(struct nested_array arg) {
+  array_callee(arg);
+}
+
+extern void complex_callee(__complex__ double);
+// CHECK: define arm_aapcs_vfpcc void @test_complex(double %{{.*}}, double %{{.*}})
+void test_complex(__complex__ double cd) {
+  complex_callee(cd);
+}
+
+// Structs with more than 4 elements of the base type are not treated
+// as homogeneous aggregates.  Test that.
+
+struct big_struct {
+  float f1;
+  float f[2];
+  float f3;
+  float f4;
+};
+// CHECK: define arm_aapcs_vfpcc void @test_big([5 x i32] %{{.*}})
+extern void big_callee(struct big_struct);
+void test_big(struct big_struct arg) {
+  big_callee(arg);
+}
+
+// Make sure that aggregates with multiple base types are not treated as
+// homogeneous aggregates.
+
+struct heterogeneous_struct {
+  float f1;
+  int i2;
+};
+// CHECK: define arm_aapcs_vfpcc void @test_hetero([2 x i32] %{{.*}})
+extern void hetero_callee(struct heterogeneous_struct);
+void test_hetero(struct heterogeneous_struct arg) {
+  hetero_callee(arg);
+}
+
+// Neon multi-vector types are homogeneous aggregates.
+// CHECK: define arm_aapcs_vfpcc <16 x i8> @f0(<16 x i8> %{{.*}}, <16 x i8> %{{.*}}, <16 x i8> %{{.*}}, <16 x i8> %{{.*}})
+int8x16_t f0(int8x16x4_t v4) {
+  return vaddq_s8(v4.val[0], v4.val[3]);
+}
+
+// ...and it doesn't matter whether the vectors are exactly the same, as long
+// as they have the same size.
+
+struct neon_struct {
+  int8x8x2_t v12;
+  int32x2_t v3;
+  int16x4_t v4;
+};
+// CHECK: define arm_aapcs_vfpcc void @test_neon(<8 x i8> %{{.*}}, <8 x i8> %{{.*}}, <2 x i32> %{{.*}}, <4 x i16> %{{.*}})
+extern void neon_callee(struct neon_struct);
+void test_neon(struct neon_struct arg) {
+  neon_callee(arg);
+}
-- 
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