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58 lines
2.4 KiB
58 lines
2.4 KiB
4 months ago
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// RUN: %clang_cc1 -std=c++11 -triple x86_64-unknown-nacl -emit-llvm -o - %s | FileCheck %s
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// RUN: %clang_cc1 -std=c++11 -triple=x86_64-unknown-linux-gnux32 -emit-llvm -o - %s | FileCheck %s
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struct test_struct {};
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typedef int test_struct::* test_struct_mdp;
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typedef int (test_struct::*test_struct_mfp)();
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// CHECK-LABEL: define i32 @{{.*}}f_mdp{{.*}}(i32 %a)
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test_struct_mdp f_mdp(test_struct_mdp a) { return a; }
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// CHECK-LABEL: define {{.*}} @{{.*}}f_mfp{{.*}}(i64 %a.coerce)
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test_struct_mfp f_mfp(test_struct_mfp a) { return a; }
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// A struct with <= 12 bytes before a member data pointer should still
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// be allowed in registers, since the member data pointer is only 4 bytes.
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// CHECK-LABEL: define void @{{.*}}f_struct_with_mdp{{.*}}(i64 %a.coerce0, i64 %a.coerce1)
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struct struct_with_mdp { char *a; char *b; char *c; test_struct_mdp d; };
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void f_struct_with_mdp(struct_with_mdp a) { (void)a; }
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struct struct_with_mdp_too_much {
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char *a; char *b; char *c; char *d; test_struct_mdp e;
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};
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// CHECK-LABEL: define void @{{.*}}f_struct_with_mdp_too_much{{.*}}({{.*}} byval({{.*}} {{.*}} %a)
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void f_struct_with_mdp_too_much(struct_with_mdp_too_much a) {
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(void)a;
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}
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// A struct with <= 8 bytes before a member function pointer should still
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// be allowed in registers, since the member function pointer is only 8 bytes.
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// CHECK-LABEL: define void @{{.*}}f_struct_with_mfp_0{{.*}}(i64 %a.coerce0, i32 %a.coerce1)
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struct struct_with_mfp_0 { char *a; test_struct_mfp b; };
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void f_struct_with_mfp_0(struct_with_mfp_0 a) { (void)a; }
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// CHECK-LABEL: define void @{{.*}}f_struct_with_mfp_1{{.*}}(i64 %a.coerce0, i64 %a.coerce1)
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struct struct_with_mfp_1 { char *a; char *b; test_struct_mfp c; };
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void f_struct_with_mfp_1(struct_with_mfp_1 a) { (void)a; }
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// CHECK-LABEL: define void @{{.*}}f_struct_with_mfp_too_much{{.*}}({{.*}} byval({{.*}}) {{.*}} %a, i32 %x)
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struct struct_with_mfp_too_much {
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char *a; char *b; char *c; test_struct_mfp d;
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};
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void f_struct_with_mfp_too_much(struct_with_mfp_too_much a, int x) {
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(void)a;
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}
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/* Struct containing an empty struct */
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typedef struct { int* a; test_struct x; double *b; } struct_with_empty;
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// CHECK-LABEL: define void @{{.*}}f_pass_struct_with_empty{{.*}}(i64 %x{{.*}}, double* %x
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void f_pass_struct_with_empty(struct_with_empty x) {
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(void) x;
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}
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// CHECK-LABEL: define { i64, double* } @{{.*}}f_return_struct_with_empty
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struct_with_empty f_return_struct_with_empty() {
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return {0, {}, 0};
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}
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