1e45ea12db
This change adds support for function linkage and visibility and related attributes. Most of the test changes are generalizations to allow 'dso_local' to be accepted where we aren't specifically testing for it. Some tests based on CIR inputs have been updated to add 'private' to function declarations where required by newly supported interfaces. The dso-local.c test has been updated to add specific tests for dso_local being set correctly, and a new test, func-linkage.cpp tests other linkage settings. This change sets `comdat` correctly in CIR, but it is not yet applied to functions when lowering to LLVM IR. That will be handled in a later change.
96 lines
2.5 KiB
C++
96 lines
2.5 KiB
C++
// RUN: %clang_cc1 -std=c++20 -triple x86_64-unknown-linux-gnu -fclangir -emit-cir %s -o - 2>&1 | FileCheck %s
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// Test anonymous namespace.
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namespace {
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int g1 = 1;
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void f1(void) {}
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}
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// Test named namespace.
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namespace test {
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int g2 = 2;
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void f2(void);
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// Test nested namespace.
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namespace test2 {
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int g3 = 3;
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void f3(void);
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}
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}
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// CHECK-DAG: cir.global "private" internal dso_local @_ZN12_GLOBAL__N_12g1E = #cir.int<1> : !s32i
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// CHECK-DAG: cir.global external @_ZN4test2g2E = #cir.int<2> : !s32i
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// CHECK-DAG: cir.global external @_ZN4test5test22g3E = #cir.int<3> : !s32i
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// CHECK-DAG: cir.func{{.*}} @_ZN12_GLOBAL__N_12f1Ev()
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// CHECK-DAG: cir.func{{.*}} @_ZN4test2f2Ev()
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// CHECK-DAG: cir.func{{.*}} @_ZN4test5test22f3Ev()
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using namespace test;
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// Test global function.
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int f4(void) {
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f1();
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f2();
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test2::f3();
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return g1 + g2 + test2::g3;
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}
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// The namespace gets added during name mangling, so this is wrong but expected.
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// CHECK: cir.func{{.*}} @_Z2f4v()
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// CHECK: cir.call @_ZN12_GLOBAL__N_12f1Ev()
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// CHECK: cir.call @_ZN4test2f2Ev()
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// CHECK: cir.call @_ZN4test5test22f3Ev()
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// CHECK: %[[G1_ADDR:.*]] = cir.get_global @_ZN12_GLOBAL__N_12g1E : !cir.ptr<!s32i>
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// CHECK: %[[G1_VAL:.*]] = cir.load{{.*}} %[[G1_ADDR]] : !cir.ptr<!s32i>, !s32i
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// CHECK: %[[G2_ADDR:.*]] = cir.get_global @_ZN4test2g2E : !cir.ptr<!s32i>
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// CHECK: %[[G2_VAL:.*]] = cir.load{{.*}} %[[G2_ADDR]] : !cir.ptr<!s32i>, !s32i
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// CHECK: %[[SUM:.*]] = cir.binop(add, %[[G1_VAL]], %[[G2_VAL]]) nsw : !s32i
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// CHECK: %[[G3_ADDR:.*]] = cir.get_global @_ZN4test5test22g3E : !cir.ptr<!s32i>
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// CHECK: %[[G3_VAL:.*]] = cir.load{{.*}} %[[G3_ADDR]] : !cir.ptr<!s32i>, !s32i
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// CHECK: %[[SUM2:.*]] = cir.binop(add, %[[SUM]], %[[G3_VAL]]) nsw : !s32i
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using test2::f3;
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using test2::g3;
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int f5() {
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f3();
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return g3;
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}
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// CHECK: cir.func{{.*}} @_Z2f5v()
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// CHECK: cir.call @_ZN4test5test22f3Ev()
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// CHECK: %[[G3_ADDR:.*]] = cir.get_global @_ZN4test5test22g3E : !cir.ptr<!s32i>
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// CHECK: %[[G3_VAL:.*]] = cir.load{{.*}} %[[G3_ADDR]] : !cir.ptr<!s32i>, !s32i
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namespace test3 {
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struct S {
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int a;
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} s;
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}
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using test3::s;
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int f6() {
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return s.a;
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}
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// CHECK: cir.func{{.*}} @_Z2f6v()
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// CHECK: cir.get_global @_ZN5test31sE : !cir.ptr<!rec_test33A3AS>
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// CHECK: cir.get_member %{{.*}}[0] {name = "a"}
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int shadowedFunc() {
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return 3;
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}
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namespace shadow {
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using ::shadowedFunc;
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}
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void f7() {
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shadow::shadowedFunc();
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}
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// CHECK: cir.func{{.*}} @_Z2f7v()
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