6e938effaa
Summary: Upstream LLVM is changing the the prototypes of the @llvm.memcpy/memmove/memset intrinsics. This change updates the Clang tests for this change. The @llvm.memcpy/memmove/memset intrinsics currently have an explicit argument which is required to be a constant integer. It represents the alignment of the dest (and source), and so must be the minimum of the actual alignment of the two. This change removes the alignment argument in favour of placing the alignment attribute on the source and destination pointers of the memory intrinsic call. For example, code which used to read: call void @llvm.memcpy.p0i8.p0i8.i32(i8* %dest, i8* %src, i32 100, i32 4, i1 false) will now read call void @llvm.memcpy.p0i8.p0i8.i32(i8* align 4 %dest, i8* align 4 %src, i32 100, i1 false) At this time the source and destination alignments must be the same (Step 1). Step 2 of the change, to be landed shortly, will relax that contraint and allow the source and destination to have different alignments. llvm-svn: 322964
28 lines
1.2 KiB
C++
28 lines
1.2 KiB
C++
// RUN: %clang_cc1 -triple %itanium_abi_triple -std=c++11 -emit-llvm -o - %s | FileCheck %s
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union PR23373 {
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PR23373(PR23373&) = default;
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PR23373 &operator=(PR23373&) = default;
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int n;
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float f;
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};
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extern PR23373 pr23373_a;
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PR23373 pr23373_b(pr23373_a);
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// CHECK-LABEL: define {{.*}} @__cxx_global_var_init(
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// CHECK: call void @llvm.memcpy.p0i8.p0i8.{{i32|i64}}({{.*}}align 4{{.*}}@pr23373_b{{.*}}, {{.*}}align 4{{.*}} @pr23373_a{{.*}}, [[W:i32|i64]] 4, i1 false)
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PR23373 pr23373_f() { return pr23373_a; }
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// CHECK-LABEL: define {{.*}} @_Z9pr23373_fv(
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// CHECK: call void @llvm.memcpy.p0i8.p0i8.[[W]]({{.*}}align 4{{.*}}align 4{{.*}}, [[W]] 4, i1 false)
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void pr23373_g(PR23373 &a, PR23373 &b) { a = b; }
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// CHECK-LABEL: define {{.*}} @_Z9pr23373_g
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// CHECK: call void @llvm.memcpy.p0i8.p0i8.[[W]]({{.*}}align 4{{.*}}align 4{{.*}}, [[W]] 4, i1 false)
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struct A { virtual void a(); };
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A x(A& y) { return y; }
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// CHECK: define linkonce_odr {{.*}} @_ZN1AC1ERKS_(%struct.A* {{.*}}%this, %struct.A* dereferenceable({{[0-9]+}})) unnamed_addr
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// CHECK: store i32 (...)** bitcast (i8** getelementptr inbounds ({ [3 x i8*] }, { [3 x i8*] }* @_ZTV1A, i32 0, inrange i32 0, i32 2) to i32 (...)**)
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