34 lines
1.1 KiB
C
34 lines
1.1 KiB
C
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// REQUIRES: bpf-registered-target
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// RUN: %clang -target bpf -emit-llvm -S -g -Xclang -disable-llvm-passes %s -o - | FileCheck %s
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#define __reloc__ __attribute__((preserve_access_index))
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// chain of records, some do not have attributes.
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struct s1 {
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int c;
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};
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typedef struct s1 __s1;
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struct s2 {
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union {
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__s1 b[3];
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};
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} __reloc__;
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typedef struct s2 __s2;
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struct s3 {
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__s2 a;
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};
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typedef struct s3 __s3;
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int test(__s3 *arg) {
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return arg->a.b[2].c;
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}
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// CHECK: define dso_local i32 @test
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// CHECK-NOT: call %struct.s2* @llvm.preserve.struct.access.index.p0s_struct.s2s.p0s_struct.s3s
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// CHECK: call %union.anon* @llvm.preserve.struct.access.index.p0s_union.anons.p0s_struct.s2s(%struct.s2* %{{[0-9a-z]+}}, i32 0, i32 0)
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// CHECK: call %union.anon* @llvm.preserve.union.access.index.p0s_union.anons.p0s_union.anons(%union.anon* %{{[0-9a-z]+}}, i32 0)
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// CHECK: call %struct.s1* @llvm.preserve.array.access.index.p0s_struct.s1s.p0a3s_struct.s1s([3 x %struct.s1]* %{{[0-9a-z]+}}, i32 1, i32 2)
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// CHECK-NOT: call i32* @llvm.preserve.struct.access.index.p0i32.p0s_struct.s1s
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