forked from OSchip/llvm-project
94 lines
2.8 KiB
C
94 lines
2.8 KiB
C
// RUN: %clang_cc1 -triple thumbv7k-apple-watchos2.0 -target-abi aapcs16 -target-cpu cortex-a7 %s -o - -emit-llvm | FileCheck %s
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#include <arm_neon.h>
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// Make sure 64 and 128 bit types are naturally aligned by the v7k ABI:
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// CHECK: target datalayout = "e-m:o-p:32:32-Fi8-i64:64-a:0:32-n32-S128"
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typedef struct {
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float arr[4];
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} HFA;
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// CHECK: define void @simple_hfa([4 x float] %h.coerce)
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void simple_hfa(HFA h) {}
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// CHECK: define %struct.HFA @return_simple_hfa
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HFA return_simple_hfa() {}
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typedef struct {
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double arr[4];
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} BigHFA;
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// We don't want any padding type to be included by Clang when using the
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// APCS-VFP ABI, that needs to be handled by LLVM if needed.
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// CHECK: void @no_padding(i32 %r0, i32 %r1, i32 %r2, [4 x double] %d0_d3.coerce, [4 x double] %d4_d7.coerce, [4 x double] %sp.coerce, i64 %split)
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void no_padding(int r0, int r1, int r2, BigHFA d0_d3, BigHFA d4_d7, BigHFA sp,
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long long split) {}
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// Structs larger than 16 bytes should be passed indirectly in space allocated
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// by the caller (a pointer to this storage should be what occurs in the arg
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// list).
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typedef struct {
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float x;
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long long y;
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double z;
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} BigStruct;
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// CHECK: define void @big_struct_indirect(%struct.BigStruct* %b)
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void big_struct_indirect(BigStruct b) {}
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// CHECK: define void @return_big_struct_indirect(%struct.BigStruct* noalias sret
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BigStruct return_big_struct_indirect() {}
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// Structs smaller than 16 bytes should be passed directly, and coerced to
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// either [N x i32] or [N x i64] depending on alignment requirements.
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typedef struct {
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float x;
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int y;
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double z;
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} SmallStruct;
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// CHECK: define void @small_struct_direct([2 x i64] %s.coerce)
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void small_struct_direct(SmallStruct s) {}
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// CHECK: define [4 x i32] @return_small_struct_direct()
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SmallStruct return_small_struct_direct() {}
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typedef struct {
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float x;
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int y;
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int z;
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} SmallStructSmallAlign;
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// CHECK: define void @small_struct_align_direct([3 x i32] %s.coerce)
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void small_struct_align_direct(SmallStructSmallAlign s) {}
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typedef struct {
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char x;
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short y;
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} PaddedSmallStruct;
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// CHECK: define i32 @return_padded_small_struct()
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PaddedSmallStruct return_padded_small_struct() {}
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typedef struct {
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char arr[7];
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} OddlySizedStruct;
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// CHECK: define [2 x i32] @return_oddly_sized_struct()
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OddlySizedStruct return_oddly_sized_struct() {}
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// CHECK: define <4 x float> @test_va_arg_vec(i8* %l)
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// CHECK: [[ALIGN_TMP:%.*]] = add i32 {{%.*}}, 15
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// CHECK: [[ALIGNED:%.*]] = and i32 [[ALIGN_TMP]], -16
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// CHECK: [[ALIGNED_I8:%.*]] = inttoptr i32 [[ALIGNED]] to i8*
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// CHECK: [[ALIGNED_VEC:%.*]] = bitcast i8* [[ALIGNED_I8]] to <4 x float>
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// CHECK: load <4 x float>, <4 x float>* [[ALIGNED_VEC]], align 16
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float32x4_t test_va_arg_vec(__builtin_va_list l) {
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return __builtin_va_arg(l, float32x4_t);
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}
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