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6b3351792c
For a definition (of most linkage types), dso_local is set for ELF -fno-pic/-fpie
and COFF, but not for Mach-O. This nuance causes unneeded binary format differences.
This patch replaces (function) `define ` with `define{{.*}} `,
(variable/constant/alias) `= ` with `={{.*}} `, or inserts appropriate `{{.*}} `
if there is an explicit linkage.
* Clang will set dso_local for Mach-O, which is currently implied by TargetMachine.cpp. This will make COFF/Mach-O and executable ELF similar.
* Eventually I hope we can make dso_local the textual LLVM IR default (write explicit "dso_preemptable" when applicable) and -fpic ELF will be similar to everything else. This patch helps move toward that goal.
53 lines
2.2 KiB
C++
53 lines
2.2 KiB
C++
// RUN: %clang_cc1 -triple x86_64-darwin -std=c++11 -emit-llvm -o - %s | FileCheck %s
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// RUN: %clang_cc1 -triple x86_64-darwin -std=c++11 -fcxx-exceptions -fexceptions -emit-llvm -o - %s | FileCheck %s --check-prefix=EXCEPTIONS
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// PR36748
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// rdar://problem/45805151
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// Classes to verify order of destroying function parameters.
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struct S1 {
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~S1();
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};
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struct S2 {
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~S2();
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};
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struct Base {
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// Use variadic args to cause inlining the inherited constructor.
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Base(const S1&, const S2&, const char *fmt, ...) {}
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};
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struct NonTrivialDtor {
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~NonTrivialDtor() {}
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};
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struct Inheritor : public NonTrivialDtor, public Base {
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using Base::Base;
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};
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void f() {
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Inheritor(S1(), S2(), "foo");
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// CHECK-LABEL: define{{.*}} void @_Z1fv
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// CHECK: %[[TMP1:.*]] = alloca %struct.S1
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// CHECK: %[[TMP2:.*]] = alloca %struct.S2
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// CHECK: call void (%struct.Base*, %struct.S1*, %struct.S2*, i8*, ...) @_ZN4BaseC2ERK2S1RK2S2PKcz(%struct.Base* {{.*}}, %struct.S1* nonnull align 1 dereferenceable(1) %[[TMP1]], %struct.S2* nonnull align 1 dereferenceable(1) %[[TMP2]], i8* {{.*}})
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// CHECK-NEXT: call void @_ZN9InheritorD1Ev(%struct.Inheritor* {{.*}})
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// CHECK-NEXT: call void @_ZN2S2D1Ev(%struct.S2* {{[^,]*}} %[[TMP2]])
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// CHECK-NEXT: call void @_ZN2S1D1Ev(%struct.S1* {{[^,]*}} %[[TMP1]])
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// EXCEPTIONS-LABEL: define{{.*}} void @_Z1fv
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// EXCEPTIONS: %[[TMP1:.*]] = alloca %struct.S1
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// EXCEPTIONS: %[[TMP2:.*]] = alloca %struct.S2
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// EXCEPTIONS: invoke void (%struct.Base*, %struct.S1*, %struct.S2*, i8*, ...) @_ZN4BaseC2ERK2S1RK2S2PKcz(%struct.Base* {{.*}}, %struct.S1* nonnull align 1 dereferenceable(1) %[[TMP1]], %struct.S2* nonnull align 1 dereferenceable(1) %[[TMP2]], i8* {{.*}})
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// EXCEPTIONS-NEXT: to label %[[CONT:.*]] unwind label %[[LPAD:.*]]
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// EXCEPTIONS: [[CONT]]:
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// EXCEPTIONS-NEXT: call void @_ZN9InheritorD1Ev(%struct.Inheritor* {{.*}})
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// EXCEPTIONS-NEXT: call void @_ZN2S2D1Ev(%struct.S2* {{[^,]*}} %[[TMP2]])
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// EXCEPTIONS-NEXT: call void @_ZN2S1D1Ev(%struct.S1* {{[^,]*}} %[[TMP1]])
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// EXCEPTIONS: [[LPAD]]:
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// EXCEPTIONS: call void @_ZN14NonTrivialDtorD2Ev(%struct.NonTrivialDtor* {{.*}})
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// EXCEPTIONS-NEXT: call void @_ZN2S2D1Ev(%struct.S2* {{[^,]*}} %[[TMP2]])
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// EXCEPTIONS-NEXT: call void @_ZN2S1D1Ev(%struct.S1* {{[^,]*}} %[[TMP1]])
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}
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