0f1c1be196
We have a new policy in place making links to private resources something we try to avoid in source and test files. Normally, we'd organically switch to the new policy rather than make a sweeping change across a project. However, Clang is in a somewhat special circumstance currently: recently, I've had several new contributors run into rdar links around test code which their patch was changing the behavior of. This turns out to be a surprisingly bad experience, especially for newer folks, for a handful of reasons: not understanding what the link is and feeling intimidated by it, wondering whether their changes are actually breaking something important to a downstream in some way, having to hunt down strangers not involved with the patch to impose on them for help, accidental pressure from asking for potentially private IP to be made public, etc. Because folks run into these links entirely by chance (through fixing bugs or working on new features), there's not really a set of problematic links to focus on -- all of the links have basically the same potential for causing these problems. As a result, this is an omnibus patch to remove all such links. This was not a mechanical change; it was done by manually searching for rdar, radar, radr, and other variants to find all the various problematic links. From there, I tried to retain or reword the surrounding comments so that we would lose as little context as possible. However, because most links were just a plain link with no supporting context, the majority of the changes are simple removals. Differential Review: https://reviews.llvm.org/D158071
120 lines
3.4 KiB
C
120 lines
3.4 KiB
C
// RUN: %clang_cc1 -triple i386-unknown-unknown -emit-llvm -disable-llvm-passes -Os -o - %s | FileCheck %s
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// RUN: %clang_cc1 -triple i386-unknown-unknown -emit-llvm -disable-llvm-passes -Os -std=c99 -o - %s | FileCheck %s
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// RUN: %clang_cc1 -triple x86_64-unknown-unknown -emit-llvm -disable-llvm-passes -Os -std=c99 -o - %s | FileCheck %s
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// CHECK: define{{.*}} signext i8 @f0(i32 noundef %x) [[NUW:#[0-9]+]]
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// CHECK: define{{.*}} zeroext i8 @f1(i32 noundef %x) [[NUW]]
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// CHECK: define{{.*}} void @f2(i8 noundef signext %x) [[NUW]]
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// CHECK: define{{.*}} void @f3(i8 noundef zeroext %x) [[NUW]]
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// CHECK: define{{.*}} signext i16 @f4(i32 noundef %x) [[NUW]]
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// CHECK: define{{.*}} zeroext i16 @f5(i32 noundef %x) [[NUW]]
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// CHECK: define{{.*}} void @f6(i16 noundef signext %x) [[NUW]]
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// CHECK: define{{.*}} void @f7(i16 noundef zeroext %x) [[NUW]]
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signed char f0(int x) { return x; }
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unsigned char f1(int x) { return x; }
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void f2(signed char x) { }
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void f3(unsigned char x) { }
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signed short f4(int x) { return x; }
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unsigned short f5(int x) { return x; }
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void f6(signed short x) { }
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void f7(unsigned short x) { }
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// CHECK-LABEL: define{{.*}} void @f8()
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// CHECK: [[AI:#[0-9]+]]
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// CHECK: {
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void __attribute__((always_inline)) f8(void) { }
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// CHECK: call void @f9_t()
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// CHECK: [[NR:#[0-9]+]]
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// CHECK: }
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void __attribute__((noreturn)) f9_t(void);
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void f9(void) { f9_t(); }
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// CHECK: call void @f9a()
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// CHECK: [[NR]]
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// CHECK: }
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_Noreturn void f9a(void);
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void f9b(void) { f9a(); }
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// FIXME: We should be setting nounwind on calls.
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// CHECK: call i32 @f10_t()
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// CHECK: [[NUW_RN:#[0-9]+]]
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// CHECK: {
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int __attribute__((const)) f10_t(void);
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int f10(void) { return f10_t(); }
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int f11(void) {
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exit:
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return f10_t();
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}
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int f12(int arg) {
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return arg ? 0 : f10_t();
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}
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// CHECK: define{{.*}} void @f13() [[NUW_OS_RN:#[0-9]+]]
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void f13(void) __attribute__((pure)) __attribute__((const));
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void f13(void){}
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// [irgen] clang isn't setting the optsize bit on functions
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// CHECK-LABEL: define{{.*}} void @f15
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// CHECK: [[NUW]]
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// CHECK: {
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void f15(void) {
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}
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// PR5254
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// CHECK-LABEL: define{{.*}} void @f16
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// CHECK: [[SR:#[0-9]+]]
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// CHECK: {
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void __attribute__((force_align_arg_pointer)) f16(void) {
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}
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// PR11038
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// CHECK-LABEL: define{{.*}} void @f18()
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// CHECK: [[RT:#[0-9]+]]
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// CHECK: {
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// CHECK: call void @f17()
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// CHECK: [[RT_CALL:#[0-9]+]]
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// CHECK: ret void
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__attribute__ ((returns_twice)) void f17(void);
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__attribute__ ((returns_twice)) void f18(void) {
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f17();
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}
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// CHECK-LABEL: define{{.*}} void @f19()
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// CHECK: {
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// CHECK: call i32 @setjmp(ptr noundef null)
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// CHECK: [[RT_CALL]]
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// CHECK: ret void
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typedef int jmp_buf[((9 * 2) + 3 + 16)];
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int setjmp(jmp_buf);
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void f19(void) {
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setjmp(0);
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}
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// CHECK-LABEL: define{{.*}} void @f20()
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// CHECK: {
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// CHECK: call i32 @_setjmp(ptr noundef null)
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// CHECK: [[RT_CALL]]
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// CHECK: ret void
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int _setjmp(jmp_buf);
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void f20(void) {
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_setjmp(0);
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}
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// CHECK: attributes [[NUW]] = { nounwind optsize{{.*}} }
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// CHECK: attributes [[AI]] = { alwaysinline nounwind optsize{{.*}} }
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// CHECK: attributes [[NUW_OS_RN]] = { nounwind optsize willreturn memory(none){{.*}} }
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// CHECK: attributes [[SR]] = { nounwind optsize{{.*}} "stackrealign"{{.*}} }
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// CHECK: attributes [[RT]] = { nounwind optsize returns_twice{{.*}} }
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// CHECK: attributes [[NR]] = { noreturn optsize }
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// CHECK: attributes [[NUW_RN]] = { nounwind optsize willreturn memory(none) }
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// CHECK: attributes [[RT_CALL]] = { optsize returns_twice }
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