550b62cbcb
Create and add generalized type identifier metadata to indirect calls, and to functions which are potential indirect call targets. The functions carry the !type metadata. The indirect callsites carry a list of !type metadata values under !callee_type metadata. RFC: https://discourse.llvm.org/t/rfc-call-graph-information-from-clang-llvm-for-c-c/88255
94 lines
3.1 KiB
C
94 lines
3.1 KiB
C
// Tests that we assign appropriate identifiers to indirect calls and targets.
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// RUN: %clang_cc1 -triple x86_64-unknown-linux -fexperimental-call-graph-section \
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// RUN: -emit-llvm -o - %s | FileCheck --check-prefixes=CHECK,ITANIUM %s
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// RUN: %clang_cc1 -triple x86_64-pc-windows-msvc -fexperimental-call-graph-section \
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// RUN: -emit-llvm -o - %s | FileCheck --check-prefixes=CHECK,MS %s
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// CHECK-LABEL: define {{(dso_local)?}} void @foo(
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// CHECK-SAME: {{.*}} !type [[F_TVOID:![0-9]+]]
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void foo() {
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}
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// CHECK-LABEL: define {{(dso_local)?}} void @bar(
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// CHECK-SAME: {{.*}} !type [[F_TVOID]]
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void bar() {
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void (*fp)() = foo;
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// ITANIUM: call {{.*}}, !callee_type [[F_TVOID_CT:![0-9]+]]
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// MS: call {{.*}}, !callee_type [[F_TVOID_CT:![0-9]+]]
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fp();
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}
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// CHECK-LABEL: define {{(dso_local)?}} i32 @baz(
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// CHECK-SAME: {{.*}} !type [[F_TPRIMITIVE:![0-9]+]]
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int baz(char a, float b, double c) {
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return 1;
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}
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// CHECK-LABEL: define {{(dso_local)?}} ptr @qux(
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// CHECK-SAME: {{.*}} !type [[F_TPTR:![0-9]+]]
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int *qux(char *a, float *b, double *c) {
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return 0;
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}
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// CHECK-LABEL: define {{(dso_local)?}} void @corge(
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// CHECK-SAME: {{.*}} !type [[F_TVOID]]
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void corge() {
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int (*fp_baz)(char, float, double) = baz;
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// CHECK: call i32 {{.*}}, !callee_type [[F_TPRIMITIVE_CT:![0-9]+]]
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fp_baz('a', .0f, .0);
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int *(*fp_qux)(char *, float *, double *) = qux;
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// CHECK: call ptr {{.*}}, !callee_type [[F_TPTR_CT:![0-9]+]]
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fp_qux(0, 0, 0);
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}
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struct st1 {
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int *(*fp)(char *, float *, double *);
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};
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struct st2 {
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struct st1 m;
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};
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// CHECK-LABEL: define {{(dso_local)?}} void @stparam(
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// CHECK-SAME: {{.*}} !type [[F_TSTRUCT:![0-9]+]]
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void stparam(struct st2 a, struct st2 *b) {}
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// CHECK-LABEL: define {{(dso_local)?}} void @stf(
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// CHECK-SAME: {{.*}} !type [[F_TVOID]]
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void stf() {
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struct st1 St1;
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St1.fp = qux;
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// CHECK: call ptr {{.*}}, !callee_type [[F_TPTR_CT:![0-9]+]]
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St1.fp(0, 0, 0);
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struct st2 St2;
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St2.m.fp = qux;
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// CHECK: call ptr {{.*}}, !callee_type [[F_TPTR_CT:![0-9]+]]
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St2.m.fp(0, 0, 0);
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// CHECK: call void {{.*}}, !callee_type [[F_TSTRUCT_CT:![0-9]+]]
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void (*fp_stparam)(struct st2, struct st2 *) = stparam;
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fp_stparam(St2, &St2);
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}
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// ITANIUM: [[F_TVOID]] = !{i64 0, !"_ZTSFvE.generalized"}
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// ITANIUM: [[F_TVOID_CT]] = !{[[F_TVOID:![0-9]+]]}
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// ITANIUM: [[F_TPRIMITIVE]] = !{i64 0, !"_ZTSFicfdE.generalized"}
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// ITANIUM: [[F_TPTR]] = !{i64 0, !"_ZTSFPiPcPfPdE.generalized"}
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// ITANIUM: [[F_TPRIMITIVE_CT]] = !{[[F_TPRIMITIVE:![0-9]+]]}
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// ITANIUM: [[F_TPTR_CT]] = !{[[F_TPTR:![0-9]+]]}
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// ITANIUM: [[F_TSTRUCT]] = !{i64 0, !"_ZTSFv3st2PS_E.generalized"}
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// ITANIUM: [[F_TSTRUCT_CT]] = !{[[F_TSTRUCT:![0-9]+]]}
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// MS: [[F_TVOID]] = !{i64 0, !"?6AX@Z.generalized"}
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// MS: [[F_TVOID_CT]] = !{[[F_TVOID:![0-9]+]]}
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// MS: [[F_TPRIMITIVE]] = !{i64 0, !"?6AHDMN@Z.generalized"}
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// MS: [[F_TPTR]] = !{i64 0, !"?6APEAHPEADPEAMPEAN@Z.generalized"}
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// MS: [[F_TPRIMITIVE_CT]] = !{[[F_TPRIMITIVE:![0-9]+]]}
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// MS: [[F_TPTR_CT]] = !{[[F_TPTR:![0-9]+]]}
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// MS: [[F_TSTRUCT]] = !{i64 0, !"?6AXUst2@@PEAU0@@Z.generalized"}
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// MS: [[F_TSTRUCT_CT]] = !{[[F_TSTRUCT:![0-9]+]]}
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