forked from OSchip/llvm-project
117 lines
3.4 KiB
C
117 lines
3.4 KiB
C
// RUN: %clang_cc1 -emit-llvm -fcf-protection=branch -triple i386-linux-gnu -o %t %s
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// RUN: FileCheck --input-file=%t %s
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// CHECK: @t5 = weak global i32 2
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int t5 __attribute__((weak)) = 2;
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// CHECK: @t13 = global %struct.s0 zeroinitializer, section "SECT"
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struct s0 { int x; };
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struct s0 t13 __attribute__((section("SECT"))) = { 0 };
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// CHECK: @t14.x = internal global i32 0, section "SECT"
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void t14(void) {
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static int x __attribute__((section("SECT"))) = 0;
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}
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// CHECK: @t18 = global i32 1, align 4
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extern int t18 __attribute__((weak_import));
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int t18 = 1;
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// CHECK: @t16 = extern_weak global i32
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extern int t16 __attribute__((weak_import));
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// CHECK: @t6 = common protected global i32 0
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int t6 __attribute__((visibility("protected")));
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// CHECK: @t12 = global i32 0, section "SECT"
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int t12 __attribute__((section("SECT")));
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// CHECK: @t9 = weak alias void (...), bitcast (void ()* @__t8 to void (...)*)
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void __t8() {}
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void t9() __attribute__((weak, alias("__t8")));
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// CHECK: declare extern_weak i32 @t15()
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int __attribute__((weak_import)) t15(void);
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int t17() {
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return t15() + t16;
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}
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// CHECK: define void @t1() [[NR:#[0-9]+]] {
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void t1() __attribute__((noreturn));
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void t1() { while (1) {} }
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// CHECK: define void @t2() [[NUW:#[0-9]+]] {
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void t2() __attribute__((nothrow));
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void t2() {}
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// CHECK: define weak void @t3() [[NUW]] {
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void t3() __attribute__((weak));
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void t3() {}
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// CHECK: define hidden void @t4() [[NUW]] {
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void t4() __attribute__((visibility("hidden")));
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void t4() {}
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// CHECK: define void @t7() [[NR]] {
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void t7() __attribute__((noreturn, nothrow));
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void t7() { while (1) {} }
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// CHECK: define void @t72() [[COLDDEF:#[0-9]+]] {
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void t71(void) __attribute__((cold));
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void t72() __attribute__((cold));
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void t72() { t71(); }
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// CHECK: call void @t71() [[COLDSITE:#[0-9]+]]
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// CHECK: declare void @t71() [[COLDDECL:#[0-9]+]]
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// CHECK: define void @t10() [[NUW]] section "SECT" {
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void t10(void) __attribute__((section("SECT")));
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void t10(void) {}
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// CHECK: define void @t11() [[NUW]] section "SECT" {
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void __attribute__((section("SECT"))) t11(void) {}
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// CHECK: define i32 @t19() [[NUW]] {
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extern int t19(void) __attribute__((weak_import));
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int t19(void) {
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return 10;
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}
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// CHECK:define void @t20() [[NUW]] {
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// CHECK: call void @abort()
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// CHECK-NEXT: unreachable
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void t20(void) {
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__builtin_abort();
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}
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void (__attribute__((fastcall)) *fptr)(int);
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void t21(void) {
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fptr(10);
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}
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// CHECK: [[FPTRVAR:%[a-z0-9]+]] = load void (i32)*, void (i32)** @fptr
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// CHECK-NEXT: call x86_fastcallcc void [[FPTRVAR]](i32 inreg 10)
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// PR9356: We might want to err on this, but for now at least make sure we
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// use the section in the definition.
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void __attribute__((section(".foo"))) t22(void);
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void __attribute__((section(".bar"))) t22(void) {}
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// CHECK: define void @t22() [[NUW]] section ".bar"
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// CHECK: define void @t23() [[NOCF_CHECK_FUNC:#[0-9]+]]
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void __attribute__((nocf_check)) t23(void) {}
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// CHECK: call void %{{[a-z0-9]+}}() [[NOCF_CHECK_CALL:#[0-9]+]]
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typedef void (*f_t)(void);
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void t24(f_t f1) {
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__attribute__((nocf_check)) f_t p = f1;
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(*p)();
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}
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// CHECK: attributes [[NUW]] = { noinline nounwind{{.*}} }
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// CHECK: attributes [[NR]] = { noinline noreturn nounwind{{.*}} }
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// CHECK: attributes [[COLDDEF]] = { cold {{.*}}}
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// CHECK: attributes [[COLDDECL]] = { cold {{.*}}}
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// CHECK: attributes [[NOCF_CHECK_FUNC]] = { nocf_check {{.*}}}
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// CHECK: attributes [[COLDSITE]] = { cold {{.*}}}
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// CHECK: attributes [[NOCF_CHECK_CALL]] = { nocf_check }
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