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diff clang/test/CodeGen/dso-local-executable.c @ 207:2e18cbf3894f

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LLVM12
author Shinji KONO <kono@ie.u-ryukyu.ac.jp>
date Tue, 08 Jun 2021 06:07:14 +0900
parents 1d019706d866
children c4bab56944e8
line wrap: on
line diff
--- a/clang/test/CodeGen/dso-local-executable.c	Mon May 25 11:55:54 2020 +0900
+++ b/clang/test/CodeGen/dso-local-executable.c	Tue Jun 08 06:07:14 2021 +0900
@@ -1,104 +1,125 @@
-// RUN: %clang_cc1 -triple x86_64-pc-win32 -emit-llvm %s -o - | FileCheck -allow-deprecated-dag-overlap --check-prefix=COFF %s
-// COFF-DAG: @bar = external dso_local global i32
-// COFF-DAG: @weak_bar = extern_weak global i32
+// RUN: %clang_cc1 -triple x86_64-pc-win32 -emit-llvm %s -o - | FileCheck --check-prefix=COFF %s
+// COFF:      @baz = dso_local global i32 42
+// COFF-NEXT: @import_var = external dllimport global i32
+// COFF-NEXT: @weak_bar = extern_weak global i32
+// COFF-NEXT: @bar = external dso_local global i32
+// COFF-NEXT: @local_thread_var = dso_local thread_local global i32 42
+// COFF-NEXT: @thread_var = external dso_local thread_local global i32
 // COFF-DAG: declare dso_local void @foo()
-// COFF-DAG: @baz = dso_local global i32 42
 // COFF-DAG: define dso_local i32* @zed()
-// COFF-DAG: @thread_var = external dso_local thread_local global i32
-// COFF-DAG: @local_thread_var = dso_local thread_local global i32 42
-// COFF-DAG: @import_var = external dllimport global i32
 // COFF-DAG: declare dllimport void @import_func()
 
-// RUN: %clang_cc1 -triple x86_64-w64-mingw32 -emit-llvm %s -o - | FileCheck -allow-deprecated-dag-overlap --check-prefix=MINGW %s
-// MINGW-DAG: @bar = external global i32
-// MINGW-DAG: @weak_bar = extern_weak global i32
+// RUN: %clang_cc1 -triple x86_64-w64-mingw32 -emit-llvm %s -o - | FileCheck --check-prefixes=MINGW,MINGW-NATIVE_TLS %s
+// RUN: %clang_cc1 -triple x86_64-w64-mingw32 -emit-llvm %s -o - -femulated-tls | FileCheck --check-prefixes=MINGW,MINGW-EMUTLS %s
+// MINGW:      @baz = dso_local global i32 42
+// MINGW-NEXT: @import_var = external dllimport global i32
+// MINGW-NEXT: @weak_bar = extern_weak global i32
+// MINGW-NEXT: @bar = external global i32
+// MINGW-NEXT: @local_thread_var = dso_local thread_local global i32 42
+// MINGW-NATIVE_TLS-NEXT: @thread_var = external dso_local thread_local global i32
+// MINGW-EMUTLS-NEXT: @thread_var = external thread_local global i32
 // MINGW-DAG: declare dso_local void @foo()
-// MINGW-DAG: @baz = dso_local global i32 42
 // MINGW-DAG: define dso_local i32* @zed()
-// MINGW-DAG: @thread_var = external dso_local thread_local global i32
-// MINGW-DAG: @local_thread_var = dso_local thread_local global i32 42
-// MINGW-DAG: @import_var = external dllimport global i32
 // MINGW-DAG: declare dllimport void @import_func()
 
-// RUN: %clang_cc1 -triple x86_64-pc-linux -emit-llvm -mrelocation-model static %s -o - | FileCheck -allow-deprecated-dag-overlap --check-prefix=STATIC %s
-// STATIC-DAG: @bar = external dso_local global i32
-// STATIC-DAG: @weak_bar = extern_weak dso_local global i32
+/// Static relocation model defaults to -fdirect-access-external-data and sets
+/// dso_local on most global objects.
+// RUN: %clang_cc1 -triple x86_64 -emit-llvm -mrelocation-model static %s -o - | FileCheck --check-prefix=STATIC %s
+// RUN: %clang_cc1 -triple x86_64 -emit-llvm -mrelocation-model static -fdirect-access-external-data %s -o - | FileCheck --check-prefix=STATIC %s
+// STATIC:      @baz = dso_local global i32 42
+// STATIC-NEXT: @import_var = external dso_local global i32
+// STATIC-NEXT: @weak_bar = extern_weak dso_local global i32
+// STATIC-NEXT: @bar = external dso_local global i32
+// STATIC-NEXT: @local_thread_var = dso_local thread_local global i32 42
+// STATIC-NEXT: @thread_var = external thread_local global i32
 // STATIC-DAG: declare dso_local void @foo()
-// STATIC-DAG: @baz = dso_local global i32 42
 // STATIC-DAG: define dso_local i32* @zed()
-// STATIC-DAG: @thread_var = external thread_local global i32
-// STATIC-DAG: @local_thread_var = dso_local thread_local global i32 42
-// STATIC-DAG: @import_var = external dso_local global i32
 // STATIC-DAG: declare dso_local void @import_func()
 
-// RUN: %clang_cc1 -triple x86_64-pc-linux -emit-llvm -pic-is-pie -mpie-copy-relocations %s -o - | FileCheck -allow-deprecated-dag-overlap --check-prefix=PIE-COPY %s
-// PIE-COPY-DAG: @bar = external dso_local global i32
-// PIE-COPY-DAG: @weak_bar = extern_weak global i32
-// PIE-COPY-DAG: declare void @foo()
-// PIE-COPY-DAG: @baz = dso_local global i32 42
-// PIE-COPY-DAG: define dso_local i32* @zed()
-// PIE-COPY-DAG: @thread_var = external thread_local global i32
-// PIE-COPY-DAG: @local_thread_var = dso_local thread_local global i32 42
-// PIE-COPY-DAG: @import_var = external dso_local global i32
-// PIE-COPY-DAG: declare void @import_func()
+/// If -fno-direct-access-external-data is set, drop dso_local from global variable
+/// declarations.
+// RUN: %clang_cc1 -triple x86_64 -emit-llvm %s -mrelocation-model static -fno-direct-access-external-data -o - | FileCheck --check-prefix=STATIC-INDIRECT %s
+// STATIC-INDIRECT:      @baz = dso_local global i32 42
+// STATIC-INDIRECT-NEXT: @import_var = external global i32
+// STATIC-INDIRECT-NEXT: @weak_bar = extern_weak global i32
+// STATIC-INDIRECT-NEXT: @bar = external global i32
+// STATIC-INDIRECT-NEXT: @local_thread_var = dso_local thread_local global i32 42
+// STATIC-INDIRECT-NEXT: @thread_var = external thread_local global i32
+// STATIC-INDIRECT-DAG:  declare void @import_func()
+// STATIC-INDIRECT-DAG:  define dso_local i32* @zed()
+// STATIC-INDIRECT-DAG:  declare void @foo()
 
-// RUN: %clang_cc1 -triple x86_64-pc-linux -emit-llvm -pic-is-pie %s -o - | FileCheck -allow-deprecated-dag-overlap --check-prefix=PIE %s
-// PIE-DAG: @bar = external global i32
-// PIE-DAG: @weak_bar = extern_weak global i32
+// RUN: %clang_cc1 -triple x86_64 -emit-llvm -pic-level 1 -pic-is-pie %s -o - | FileCheck --check-prefix=PIE %s
+// PIE:      @baz = dso_local global i32 42
+// PIE-NEXT: @import_var = external global i32
+// PIE-NEXT: @weak_bar = extern_weak global i32
+// PIE-NEXT: @bar = external global i32
+// PIE-NEXT: @local_thread_var = dso_local thread_local global i32 42
+// PIE-NEXT: @thread_var = external thread_local global i32
 // PIE-DAG: declare void @foo()
-// PIE-DAG: @baz = dso_local global i32 42
 // PIE-DAG: define dso_local i32* @zed()
-// PIE-DAG: @thread_var = external thread_local global i32
-// PIE-DAG: @local_thread_var = dso_local thread_local global i32 42
-// PIE-DAG: @import_var = external global i32
 // PIE-DAG: declare void @import_func()
 
-// RUN: %clang_cc1 -triple x86_64-pc-linux -emit-llvm -mrelocation-model static -fno-plt %s -o - | FileCheck -allow-deprecated-dag-overlap --check-prefix=NOPLT %s
-// NOPLT-DAG: @bar = external dso_local global i32
-// NOPLT-DAG: @weak_bar = extern_weak dso_local global i32
+// RUN: %clang_cc1 -triple x86_64 -emit-llvm -pic-level 1 -pic-is-pie -fdirect-access-external-data %s -o - | FileCheck --check-prefix=PIE-DIRECT %s
+// PIE-DIRECT:      @baz = dso_local global i32 42
+// PIE-DIRECT-NEXT: @import_var = external dso_local global i32
+// PIE-DIRECT-NEXT: @weak_bar = extern_weak global i32
+// PIE-DIRECT-NEXT: @bar = external dso_local global i32
+// PIE-DIRECT-NEXT: @local_thread_var = dso_local thread_local global i32 42
+// PIE-DIRECT-NEXT: @thread_var = external thread_local global i32
+// PIE-DIRECT-DAG: declare void @foo()
+// PIE-DIRECT-DAG: define dso_local i32* @zed()
+// PIE-DIRECT-DAG: declare void @import_func()
+
+// RUN: %clang_cc1 -triple x86_64 -emit-llvm -mrelocation-model static -fno-plt %s -o - | FileCheck --check-prefix=NOPLT %s
+// NOPLT:      @baz = dso_local global i32 42
+// NOPLT-NEXT: @import_var = external dso_local global i32
+// NOPLT-NEXT: @weak_bar = extern_weak dso_local global i32
+// NOPLT-NEXT: @bar = external dso_local global i32
+// NOPLT-NEXT: @local_thread_var = dso_local thread_local global i32 42
+// NOPLT-NEXT: @thread_var = external thread_local global i32
 // NOPLT-DAG: declare void @foo()
-// NOPLT-DAG: @baz = dso_local global i32 42
 // NOPLT-DAG: define dso_local i32* @zed()
-// NOPLT-DAG: @thread_var = external thread_local global i32
-// NOPLT-DAG: @local_thread_var = dso_local thread_local global i32 42
-// NOPLT-DAG: @import_var = external dso_local global i32
 // NOPLT-DAG: declare void @import_func()
 
-// RUN: %clang_cc1 -triple x86_64-pc-linux -emit-llvm -fno-plt -pic-is-pie -mpie-copy-relocations %s -o - | FileCheck -allow-deprecated-dag-overlap --check-prefix=PIE-COPY-NOPLT %s
-// PIE-COPY-NOPLT-DAG: @bar = external dso_local global i32
-// PIE-COPY-NOPLT-DAG: @weak_bar = extern_weak global i32
-// PIE-COPY-NOPLT-DAG: declare void @foo()
-// PIE-COPY-NOPLT-DAG: @baz = dso_local global i32 42
-// PIE-COPY-NOPLT-DAG: define dso_local i32* @zed()
-// PIE-COPY-NOPLT-DAG: @thread_var = external thread_local global i32
-// PIE-COPY-NOPLT-DAG: @local_thread_var = dso_local thread_local global i32 42
-// PIE-COPY-NOPLT-DAG: @import_var = external dso_local global i32
-// PIE-COPY-NOPLT-DAG: declare void @import_func()
+// RUN: %clang_cc1 -triple x86_64 -emit-llvm -fno-plt -pic-level 1 -pic-is-pie -fdirect-access-external-data %s -o - | FileCheck --check-prefix=PIE-DIRECT-NOPLT %s
+// PIE-DIRECT-NOPLT:      @baz = dso_local global i32 42
+// PIE-DIRECT-NOPLT-NEXT: @import_var = external dso_local global i32
+// PIE-DIRECT-NOPLT-NEXT: @weak_bar = extern_weak global i32
+// PIE-DIRECT-NOPLT-NEXT: @bar = external dso_local global i32
+// PIE-DIRECT-NOPLT-NEXT: @local_thread_var = dso_local thread_local global i32 42
+// PIE-DIRECT-NOPLT-NEXT: @thread_var = external thread_local global i32
+// PIE-DIRECT-NOPLT-DAG: declare void @foo()
+// PIE-DIRECT-NOPLT-DAG: define dso_local i32* @zed()
+// PIE-DIRECT-NOPLT-DAG: declare void @import_func()
 
-// RUN: %clang_cc1 -triple x86_64-pc-linux -emit-llvm -pic-is-pie -fno-plt %s -o - | FileCheck -allow-deprecated-dag-overlap --check-prefix=PIE-NO-PLT %s
-// RUN: %clang_cc1 -triple powerpc64le-pc-linux -emit-llvm -mrelocation-model static %s -o - | FileCheck -allow-deprecated-dag-overlap --check-prefix=PIE-NO-PLT %s
-// PIE-NO-PLT-DAG: @bar = external global i32
-// PIE-NO-PLT-DAG: @weak_bar = extern_weak global i32
-// PIE-NO-PLT-DAG: declare void @foo()
-// PIE-NO-PLT-DAG: @baz = dso_local global i32 42
-// PIE-NO-PLT-DAG: define dso_local i32* @zed()
-// PIE-NO-PLT-DAG: @thread_var = external thread_local global i32
-// PIE-NO-PLT-DAG: @local_thread_var = dso_local thread_local global i32 42
-// PIE-NO-PLT-DAG: @import_var = external global i32
-// PIE-NO-PLT-DAG: declare void @import_func()
+// RUN: %clang_cc1 -triple x86_64 -emit-llvm -pic-level 1 -pic-is-pie -fno-plt %s -o - | FileCheck --check-prefix=PIE-NO-PLT %s
+// RUN: %clang_cc1 -triple powerpc64le -emit-llvm -mrelocation-model static %s -o - | FileCheck --check-prefix=PIE-NO-PLT %s
+// PIE-NO-PLT:      @baz = dso_local global i32 42
+// PIE-NO-PLT-NEXT: @import_var = external global i32
+// PIE-NO-PLT-NEXT: @weak_bar = extern_weak global i32
+// PIE-NO-PLT-NEXT: @bar = external global i32
+// PIE-NO-PLT-NEXT: @local_thread_var = dso_local thread_local global i32 42
+// PIE-NO-PLT-NEXT: @thread_var = external thread_local global i32
+// PIE-NO-PLT-DAG:  declare void @import_func()
+// PIE-NO-PLT-DAG:  define dso_local i32* @zed()
+// PIE-NO-PLT-DAG:  declare void @foo()
 
-// RUN: %clang_cc1 -triple x86_64-pc-linux -emit-llvm %s -o - | FileCheck -allow-deprecated-dag-overlap --check-prefix=SHARED %s
+/// -fdirect-access-external-data is currently ignored for -fPIC.
+// RUN: %clang_cc1 -triple x86_64 -emit-llvm -pic-level 2 %s -o - | FileCheck --check-prefix=SHARED %s
+// RUN: %clang_cc1 -triple x86_64 -emit-llvm -pic-level 2 -fdirect-access-external-data %s -o - | FileCheck --check-prefix=SHARED %s
 // SHARED-DAG: @bar = external global i32
 // SHARED-DAG: @weak_bar = extern_weak global i32
 // SHARED-DAG: declare void @foo()
-// SHARED-DAG: @baz = global i32 42
-// SHARED-DAG: define i32* @zed()
+// SHARED-DAG: @baz ={{.*}} global i32 42
+// SHARED-DAG: define{{.*}} i32* @zed()
 // SHARED-DAG: @thread_var = external thread_local global i32
-// SHARED-DAG: @local_thread_var = thread_local global i32 42
-// PIE-NO-PLT-DAG: @import_var = external global i32
-// PIE-NO-PLT-DAG: declare void @import_func()
+// SHARED-DAG: @local_thread_var ={{.*}} thread_local global i32 42
 
+int baz = 42;
 __attribute__((dllimport)) extern int import_var;
+__attribute__((weak)) extern int weak_bar;
+extern int bar;
 __attribute__((dllimport)) void import_func(void);
 
 int *use_import() {
@@ -106,18 +127,15 @@
   return &import_var;
 }
 
-extern int bar;
-__attribute__((weak)) extern int weak_bar;
 void foo(void);
 
-int baz = 42;
 int *zed() {
   foo();
   return baz ? &weak_bar : &bar;
 }
 
+__thread int local_thread_var = 42;
 extern __thread int thread_var;
-__thread int local_thread_var = 42;
 int *get_thread_var(int a) {
   return a ? &thread_var : &local_thread_var;
 }