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.
107 lines
5.3 KiB
C
107 lines
5.3 KiB
C
// This test is copied from clang/test/CodeGen/dso-local-executable.c with
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// unsupported targets, thread_local variables, and function checks removed.
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// These are here so we find this test when grepping for missing features.
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// cir::MissingFeatures::opGlobalThreadLocal()
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// Note: Unlike CIR doesn't set dso_local on function declarations. This is
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// a difference from classic codege in the STATIC checks.
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/// Static relocation model defaults to -fdirect-access-external-data and sets
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/// dso_local on most global objects.
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// RUN: %clang_cc1 -triple x86_64-unknown-linux-gnu -fclangir -emit-llvm -mrelocation-model static %s -o - | FileCheck --check-prefix=STATIC %s
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// RUN: %clang_cc1 -triple x86_64-unknown-linux-gnu -fclangir -emit-llvm -mrelocation-model static -fdirect-access-external-data %s -o - | FileCheck --check-prefix=STATIC %s
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// STATIC: @baz = dso_local global i32 42
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// STATIC-NEXT: @import_var = external dso_local global i32
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// STATIC-NEXT: @weak_bar = extern_weak dso_local global i32
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// STATIC-NEXT: @bar = external dso_local global i32
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// STATIC-DAG: declare void @foo()
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// STATIC-DAG: define dso_local ptr @zed()
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// STATIC-DAG: declare void @import_func()
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/// If -fno-direct-access-external-data is set, drop dso_local from global variable
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/// declarations.
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// RUN: %clang_cc1 -triple x86_64-unknown-linux-gnu -fclangir -emit-llvm -mrelocation-model static -fno-direct-access-external-data %s -o - | FileCheck --check-prefix=STATIC-INDIRECT %s
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// STATIC-INDIRECT: @baz = dso_local global i32 42
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// STATIC-INDIRECT-NEXT: @import_var = external global i32
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// STATIC-INDIRECT-NEXT: @weak_bar = extern_weak global i32
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// STATIC-INDIRECT-NEXT: @bar = external global i32
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// STATIC-INDIRECT-DAG: declare void @import_func()
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// STATIC-INDIRECT-DAG: define dso_local ptr @zed()
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// STATIC-INDIRECT-DAG: declare void @foo()
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// RUN: %clang_cc1 -triple x86_64-unknown-linux-gnu -fclangir -emit-llvm -pic-level 1 -pic-is-pie %s -o - | FileCheck --check-prefix=PIE %s
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// PIE: @baz = dso_local global i32 42
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// PIE-NEXT: @import_var = external global i32
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// PIE-NEXT: @weak_bar = extern_weak global i32
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// PIE-NEXT: @bar = external global i32
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// PIE-DAG: declare void @foo()
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// PIE-DAG: define dso_local ptr @zed()
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// PIE-DAG: declare void @import_func()
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// RUN: %clang_cc1 -triple x86_64-unknown-linux-gnu -fclangir -emit-llvm -pic-level 1 -pic-is-pie -fdirect-access-external-data %s -o - | FileCheck --check-prefix=PIE-DIRECT %s
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// PIE-DIRECT: @baz = dso_local global i32 42
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// PIE-DIRECT-NEXT: @import_var = external dso_local global i32
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// PIE-DIRECT-NEXT: @weak_bar = extern_weak global i32
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// PIE-DIRECT-NEXT: @bar = external dso_local global i32
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// PIE-DIRECT-DAG: declare void @foo()
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// PIE-DIRECT-DAG: define dso_local ptr @zed()
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// PIE-DIRECT-DAG: declare void @import_func()
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// RUN: %clang_cc1 -triple x86_64-unknown-linux-gnu -fclangir -emit-llvm -mrelocation-model static -fno-plt %s -o - | FileCheck --check-prefix=NOPLT %s
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// NOPLT: @baz = dso_local global i32 42
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// NOPLT-NEXT: @import_var = external dso_local global i32
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// NOPLT-NEXT: @weak_bar = extern_weak dso_local global i32
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// NOPLT-NEXT: @bar = external dso_local global i32
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// NOPLT-DAG: declare void @foo()
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// NOPLT-DAG: define dso_local ptr @zed()
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// NOPLT-DAG: declare void @import_func()
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// RUN: %clang_cc1 -triple x86_64-unknown-linux-gnu -fclangir -emit-llvm -fno-plt -pic-level 1 -pic-is-pie -fdirect-access-external-data %s -o - | FileCheck --check-prefix=PIE-DIRECT-NOPLT %s
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// PIE-DIRECT-NOPLT: @baz = dso_local global i32 42
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// PIE-DIRECT-NOPLT-NEXT: @import_var = external dso_local global i32
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// PIE-DIRECT-NOPLT-NEXT: @weak_bar = extern_weak global i32
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// PIE-DIRECT-NOPLT-NEXT: @bar = external dso_local global i32
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// PIE-DIRECT-NOPLT-DAG: declare void @foo()
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// PIE-DIRECT-NOPLT-DAG: define dso_local ptr @zed()
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// PIE-DIRECT-NOPLT-DAG: declare void @import_func()
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// RUN: %clang_cc1 -triple x86_64-unknown-linux-gnu -fclangir -emit-llvm -pic-level 1 -pic-is-pie -fno-plt %s -o - | FileCheck --check-prefix=PIE-NO-PLT %s
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// RUN: %clang_cc1 -triple powerpc64le -fclangir -emit-llvm -mrelocation-model static %s -o - | FileCheck --check-prefix=PIE-NO-PLT %s
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// PIE-NO-PLT: @baz = dso_local global i32 42
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// PIE-NO-PLT-NEXT: @import_var = external global i32
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// PIE-NO-PLT-NEXT: @weak_bar = extern_weak global i32
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// PIE-NO-PLT-NEXT: @bar = external global i32
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// PIE-NO-PLT-DAG: declare void @import_func()
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// PIE-NO-PLT-DAG: define dso_local ptr @zed()
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// PIE-NO-PLT-DAG: declare void @foo()
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/// -fdirect-access-external-data is currently ignored for -fPIC.
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// RUN: %clang_cc1 -triple x86_64-unknown-linux-gnu -fclangir -emit-llvm -pic-level 2 %s -o - | FileCheck --check-prefix=SHARED %s
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// RUN: %clang_cc1 -triple x86_64-unknown-linux-gnu -fclangir -emit-llvm -pic-level 2 -fdirect-access-external-data %s -o - | FileCheck --check-prefix=SHARED %s
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// SHARED-DAG: @bar = external global i32
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// SHARED-DAG: @weak_bar = extern_weak global i32
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// SHARED-DAG: declare void @foo()
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// SHARED-DAG: @baz ={{.*}} global i32 42
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// SHARED-DAG: define{{.*}} ptr @zed()
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int baz = 42;
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__attribute__((dllimport)) extern int import_var;
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__attribute__((weak)) extern int weak_bar;
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extern int bar;
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__attribute__((dllimport)) void import_func(void);
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int *use_import(void) {
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import_func();
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return &import_var;
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}
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void foo(void);
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int *zed(void) {
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foo();
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if (baz)
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return &weak_bar;
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return &bar;
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}
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