head	1.1;
branch	1.1.1;
access;
symbols
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	netbsd-11-0-RC3:1.1.1.2
	netbsd-11-0-RC2:1.1.1.2
	netbsd-11-0-RC1:1.1.1.2
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	clang-337282:1.1.1.1
	LLVM:1.1.1;
locks; strict;
comment	@// @;


1.1
date	2018.07.17.18.31.27;	author joerg;	state Exp;
branches
	1.1.1.1;
next	;
commitid	wDzL46ALjrCZgwKA;

1.1.1.1
date	2018.07.17.18.31.27;	author joerg;	state Exp;
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	1.1.1.1.2.1
	1.1.1.1.4.1;
next	1.1.1.2;
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1.1.1.2
date	2019.11.13.22.20.15;	author joerg;	state dead;
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1.1.1.1.2.1
date	2018.07.17.18.31.27;	author pgoyette;	state dead;
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1.1.1.1.2.2
date	2018.07.28.04.33.43;	author pgoyette;	state Exp;
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1.1.1.1.4.1
date	2018.07.17.18.31.27;	author christos;	state dead;
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1.1.1.1.4.2
date	2019.06.10.21.45.52;	author christos;	state Exp;
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next	1.1.1.1.4.3;
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1.1.1.1.4.3
date	2020.04.13.07.47.29;	author martin;	state dead;
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next	;
commitid	X01YhRUPVUDaec4C;


desc
@@


1.1
log
@Initial revision
@
text
@// RUN: %clang_cc1 -triple %itanium_abi_triple -emit-llvm -o - %s | FileCheck %s

// PR36992
namespace Implicit {
  struct A { char c; A(const A&); };
  struct B { int n; char c[3]; ~B(); };
  struct C : B, virtual A {};
  static_assert(sizeof(C) == sizeof(void*) + 8);
  C f(C c) { return c; }

  // CHECK: define {{.*}} @@_ZN8Implicit1CC1EOS0_
  // CHECK: call {{.*}} @@_ZN8Implicit1AC2ERKS0_(
  // Note: this must memcpy 7 bytes, not 8, to avoid trampling over the virtual base class.
  // CHECK: call void @@llvm.memcpy.p0i8.p0i8.i{{32|64}}(i8* {{.*}}, i8* {{.*}}, i{{32|64}} 7, i1 false)
  // CHECK: store i32 {{.*}} @@_ZTVN8Implicit1CE
}

namespace InitWithinNVSize {
  // This is the same as the previous test, except that the A base lies
  // entirely within the nvsize of C. This makes it valid to copy at the
  // full width.
  struct A { char c; A(const A&); };
  struct B { int n; char c[3]; ~B(); };
  struct C : B, virtual A { char x; };
  static_assert(sizeof(C) > sizeof(void*) + 8);
  C f(C c) { return c; }

  // CHECK: define {{.*}} @@_ZN16InitWithinNVSize1CC1EOS0_
  // CHECK: call {{.*}} @@_ZN16InitWithinNVSize1AC2ERKS0_(
  // This copies over the 'C::x' member, but that's OK because we've not initialized it yet.
  // CHECK: call void @@llvm.memcpy.p0i8.p0i8.i{{32|64}}(i8* {{.*}}, i8* {{.*}}, i{{32|64}} 8, i1 false)
  // CHECK: store i32 {{.*}} @@_ZTVN16InitWithinNVSize1CE
  // CHECK: store i8
}
@


1.1.1.1
log
@Import clang r337282 from trunk
@
text
@@


1.1.1.2
log
@Mark old LLVM instance as dead.
@
text
@@


1.1.1.1.4.1
log
@file tail-padding.cpp was added on branch phil-wifi on 2019-06-10 21:45:52 +0000
@
text
@d1 34
@


1.1.1.1.4.2
log
@Sync with HEAD
@
text
@a0 34
// RUN: %clang_cc1 -triple %itanium_abi_triple -emit-llvm -o - %s | FileCheck %s

// PR36992
namespace Implicit {
  struct A { char c; A(const A&); };
  struct B { int n; char c[3]; ~B(); };
  struct C : B, virtual A {};
  static_assert(sizeof(C) == sizeof(void*) + 8);
  C f(C c) { return c; }

  // CHECK: define {{.*}} @@_ZN8Implicit1CC1EOS0_
  // CHECK: call {{.*}} @@_ZN8Implicit1AC2ERKS0_(
  // Note: this must memcpy 7 bytes, not 8, to avoid trampling over the virtual base class.
  // CHECK: call void @@llvm.memcpy.p0i8.p0i8.i{{32|64}}(i8* {{.*}}, i8* {{.*}}, i{{32|64}} 7, i1 false)
  // CHECK: store i32 {{.*}} @@_ZTVN8Implicit1CE
}

namespace InitWithinNVSize {
  // This is the same as the previous test, except that the A base lies
  // entirely within the nvsize of C. This makes it valid to copy at the
  // full width.
  struct A { char c; A(const A&); };
  struct B { int n; char c[3]; ~B(); };
  struct C : B, virtual A { char x; };
  static_assert(sizeof(C) > sizeof(void*) + 8);
  C f(C c) { return c; }

  // CHECK: define {{.*}} @@_ZN16InitWithinNVSize1CC1EOS0_
  // CHECK: call {{.*}} @@_ZN16InitWithinNVSize1AC2ERKS0_(
  // This copies over the 'C::x' member, but that's OK because we've not initialized it yet.
  // CHECK: call void @@llvm.memcpy.p0i8.p0i8.i{{32|64}}(i8* {{.*}}, i8* {{.*}}, i{{32|64}} 8, i1 false)
  // CHECK: store i32 {{.*}} @@_ZTVN16InitWithinNVSize1CE
  // CHECK: store i8
}
@


1.1.1.1.4.3
log
@Mostly merge changes from HEAD upto 20200411
@
text
@@


1.1.1.1.2.1
log
@file tail-padding.cpp was added on branch pgoyette-compat on 2018-07-28 04:33:43 +0000
@
text
@d1 34
@


1.1.1.1.2.2
log
@Sync with HEAD
@
text
@a0 34
// RUN: %clang_cc1 -triple %itanium_abi_triple -emit-llvm -o - %s | FileCheck %s

// PR36992
namespace Implicit {
  struct A { char c; A(const A&); };
  struct B { int n; char c[3]; ~B(); };
  struct C : B, virtual A {};
  static_assert(sizeof(C) == sizeof(void*) + 8);
  C f(C c) { return c; }

  // CHECK: define {{.*}} @@_ZN8Implicit1CC1EOS0_
  // CHECK: call {{.*}} @@_ZN8Implicit1AC2ERKS0_(
  // Note: this must memcpy 7 bytes, not 8, to avoid trampling over the virtual base class.
  // CHECK: call void @@llvm.memcpy.p0i8.p0i8.i{{32|64}}(i8* {{.*}}, i8* {{.*}}, i{{32|64}} 7, i1 false)
  // CHECK: store i32 {{.*}} @@_ZTVN8Implicit1CE
}

namespace InitWithinNVSize {
  // This is the same as the previous test, except that the A base lies
  // entirely within the nvsize of C. This makes it valid to copy at the
  // full width.
  struct A { char c; A(const A&); };
  struct B { int n; char c[3]; ~B(); };
  struct C : B, virtual A { char x; };
  static_assert(sizeof(C) > sizeof(void*) + 8);
  C f(C c) { return c; }

  // CHECK: define {{.*}} @@_ZN16InitWithinNVSize1CC1EOS0_
  // CHECK: call {{.*}} @@_ZN16InitWithinNVSize1AC2ERKS0_(
  // This copies over the 'C::x' member, but that's OK because we've not initialized it yet.
  // CHECK: call void @@llvm.memcpy.p0i8.p0i8.i{{32|64}}(i8* {{.*}}, i8* {{.*}}, i{{32|64}} 8, i1 false)
  // CHECK: store i32 {{.*}} @@_ZTVN16InitWithinNVSize1CE
  // CHECK: store i8
}
@