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06a67e2c6f
trailing elements as a single loop, rather than sometimes emitting a nest of several loops. This fixes a bug where CodeGen would sometimes try to emit an expression with the wrong type for the element being initialized. Plus various other minor cleanups to the IR produced for array new initialization. llvm-svn: 210079
49 lines
1.3 KiB
C++
49 lines
1.3 KiB
C++
// RUN: %clang_cc1 -std=c++11 -triple i386-unknown-unknown %s -emit-llvm -o - | FileCheck %s
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// CHECK-LABEL: define void @_Z2fni
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void fn(int n) {
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// CHECK: icmp ult i{{32|64}} %{{[^ ]+}}, 3
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// CHECK: store i32 1
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// CHECK: store i32 2
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// CHECK: store i32 3
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// CHECK: sub {{.*}}, 12
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// CHECK: call void @llvm.memset
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new int[n] { 1, 2, 3 };
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}
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// CHECK-LABEL: define void @_Z15const_underflowv
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void const_underflow() {
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// CHECK-NOT: icmp ult i{{32|64}} %{{[^ ]+}}, 3
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// CHECK: call noalias i8* @_Zna{{.}}(i{{32|64}} -1)
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new int[2] { 1, 2, 3 };
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}
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// CHECK-LABEL: define void @_Z11const_exactv
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void const_exact() {
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// CHECK-NOT: icmp ult i{{32|64}} %{{[^ ]+}}, 3
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// CHECK-NOT: icmp eq i32*
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new int[3] { 1, 2, 3 };
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}
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// CHECK-LABEL: define void @_Z16const_sufficientv
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void const_sufficient() {
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// CHECK-NOT: icmp ult i{{32|64}} %{{[^ ]+}}, 3
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new int[4] { 1, 2, 3 };
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// CHECK: ret void
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}
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// CHECK-LABEL: define void @_Z22check_array_value_initv
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void check_array_value_init() {
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struct S;
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new (int S::*[3][4][5]) ();
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// CHECK: call noalias i8* @_Zna{{.}}(i{{32 240|64 480}})
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// CHECK: getelementptr inbounds i{{32|64}}* {{.*}}, i{{32|64}} 60
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// CHECK: phi
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// CHECK: store i{{32|64}} -1,
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// CHECK: getelementptr inbounds i{{32|64}}* {{.*}}, i{{32|64}} 1
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// CHECK: icmp eq
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// CHECK: br i1
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}
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