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| // RUN: %clang_cc1 -std=c++14 -triple i386-unknown-unknown %s -emit-llvm -o - | FileCheck %s
// rdar://problem/9246208
// Basic test.
namespace test0 {
struct A {
A();
int x;
};
typedef A elt;
// CHECK: define [[A:%.*]]* @_ZN5test04testEs(i16 signext
// CHECK: [[N:%.*]] = sext i16 {{%.*}} to i32
// CHECK-NEXT: [[T0:%.*]] = call { i32, i1 } @llvm.umul.with.overflow.i32(i32 [[N]], i32 4)
// CHECK-NEXT: [[T1:%.*]] = extractvalue { i32, i1 } [[T0]], 1
// CHECK-NEXT: [[T2:%.*]] = extractvalue { i32, i1 } [[T0]], 0
// CHECK-NEXT: [[T3:%.*]] = select i1 [[T1]], i32 -1, i32 [[T2]]
// CHECK-NEXT: call i8* @_Znaj(i32 [[T3]])
// CHECK: getelementptr inbounds {{.*}}, i32 [[N]]
elt *test(short s) {
return new elt[s];
}
}
// test0 with a nested array.
namespace test1 {
struct A {
A();
int x;
};
typedef A elt[100];
// CHECK: define [100 x [[A:%.*]]]* @_ZN5test14testEs(i16 signext
// CHECK: [[N:%.*]] = sext i16 {{%.*}} to i32
// CHECK-NEXT: [[T0:%.*]] = call { i32, i1 } @llvm.umul.with.overflow.i32(i32 [[N]], i32 400)
// CHECK-NEXT: [[T1:%.*]] = extractvalue { i32, i1 } [[T0]], 1
// CHECK-NEXT: [[T2:%.*]] = extractvalue { i32, i1 } [[T0]], 0
// CHECK-NEXT: [[T3:%.*]] = mul i32 [[N]], 100
// CHECK-NEXT: [[T4:%.*]] = select i1 [[T1]], i32 -1, i32 [[T2]]
// CHECK-NEXT: call i8* @_Znaj(i32 [[T4]])
// CHECK: getelementptr inbounds {{.*}}, i32 [[T3]]
elt *test(short s) {
return new elt[s];
}
}
// test1 with an array cookie.
namespace test2 {
struct A {
A();
~A();
int x;
};
typedef A elt[100];
// CHECK: define [100 x [[A:%.*]]]* @_ZN5test24testEs(i16 signext
// CHECK: [[N:%.*]] = sext i16 {{%.*}} to i32
// CHECK-NEXT: [[T0:%.*]] = call { i32, i1 } @llvm.umul.with.overflow.i32(i32 [[N]], i32 400)
// CHECK-NEXT: [[T1:%.*]] = extractvalue { i32, i1 } [[T0]], 1
// CHECK-NEXT: [[T2:%.*]] = extractvalue { i32, i1 } [[T0]], 0
// CHECK-NEXT: [[T3:%.*]] = mul i32 [[N]], 100
// CHECK-NEXT: [[T4:%.*]] = call { i32, i1 } @llvm.uadd.with.overflow.i32(i32 [[T2]], i32 4)
// CHECK-NEXT: [[T5:%.*]] = extractvalue { i32, i1 } [[T4]], 1
// CHECK-NEXT: [[T6:%.*]] = or i1 [[T1]], [[T5]]
// CHECK-NEXT: [[T7:%.*]] = extractvalue { i32, i1 } [[T4]], 0
// CHECK-NEXT: [[T8:%.*]] = select i1 [[T6]], i32 -1, i32 [[T7]]
// CHECK-NEXT: call i8* @_Znaj(i32 [[T8]])
// CHECK: getelementptr inbounds {{.*}}, i32 [[T3]]
elt *test(short s) {
return new elt[s];
}
}
// test0 with a 1-byte element.
namespace test4 {
struct A {
A();
};
typedef A elt;
// CHECK: define [[A:%.*]]* @_ZN5test44testEs(i16 signext
// CHECK: [[N:%.*]] = sext i16 {{%.*}} to i32
// CHECK-NEXT: call i8* @_Znaj(i32 [[N]])
// CHECK: getelementptr inbounds {{.*}}, i32 [[N]]
elt *test(short s) {
return new elt[s];
}
}
// test4 with no sext required.
namespace test5 {
struct A {
A();
};
typedef A elt;
// CHECK: define [[A:%.*]]* @_ZN5test54testEi(i32
// CHECK: [[N:%.*]] = load i32, i32*
// CHECK-NEXT: call i8* @_Znaj(i32 [[N]])
// CHECK: getelementptr inbounds {{.*}}, i32 [[N]]
elt *test(int s) {
return new elt[s];
}
}
// test0 with an unsigned size.
namespace test6 {
struct A {
A();
int x;
};
typedef A elt;
// CHECK: define [[A:%.*]]* @_ZN5test64testEt(i16 zeroext
// CHECK: [[N:%.*]] = zext i16 {{%.*}} to i32
// CHECK-NEXT: [[T0:%.*]] = call { i32, i1 } @llvm.umul.with.overflow.i32(i32 [[N]], i32 4)
// CHECK-NEXT: [[T1:%.*]] = extractvalue { i32, i1 } [[T0]], 1
// CHECK-NEXT: [[T2:%.*]] = extractvalue { i32, i1 } [[T0]], 0
// CHECK-NEXT: [[T3:%.*]] = select i1 [[T1]], i32 -1, i32 [[T2]]
// CHECK-NEXT: call i8* @_Znaj(i32 [[T3]])
// CHECK: getelementptr inbounds {{.*}}, i32 [[N]]
elt *test(unsigned short s) {
return new elt[s];
}
}
// test1 with an unsigned size.
namespace test7 {
struct A {
A();
int x;
};
typedef A elt[100];
// CHECK: define [100 x [[A:%.*]]]* @_ZN5test74testEt(i16 zeroext
// CHECK: [[N:%.*]] = zext i16 {{%.*}} to i32
// CHECK-NEXT: [[T0:%.*]] = call { i32, i1 } @llvm.umul.with.overflow.i32(i32 [[N]], i32 400)
// CHECK-NEXT: [[T1:%.*]] = extractvalue { i32, i1 } [[T0]], 1
// CHECK-NEXT: [[T2:%.*]] = extractvalue { i32, i1 } [[T0]], 0
// CHECK-NEXT: [[T3:%.*]] = mul i32 [[N]], 100
// CHECK-NEXT: [[T4:%.*]] = select i1 [[T1]], i32 -1, i32 [[T2]]
// CHECK-NEXT: call i8* @_Znaj(i32 [[T4]])
// CHECK: getelementptr inbounds {{.*}}, i32 [[T3]]
elt *test(unsigned short s) {
return new elt[s];
}
}
// test0 with a signed type larger than size_t.
namespace test8 {
struct A {
A();
int x;
};
typedef A elt;
// CHECK: define [[A:%.*]]* @_ZN5test84testEx(i64
// CHECK: [[N:%.*]] = load i64, i64*
// CHECK-NEXT: [[T1:%.*]] = trunc i64 [[N]] to i32
// CHECK-NEXT: [[T2:%.*]] = call { i32, i1 } @llvm.umul.with.overflow.i32(i32 [[T1]], i32 4)
// CHECK-NEXT: [[T3:%.*]] = extractvalue { i32, i1 } [[T2]], 1
// CHECK-NEXT: [[T5:%.*]] = extractvalue { i32, i1 } [[T2]], 0
// CHECK-NEXT: [[T6:%.*]] = select i1 [[T3]], i32 -1, i32 [[T5]]
// CHECK-NEXT: call i8* @_Znaj(i32 [[T6]])
// CHECK: getelementptr inbounds {{.*}}, i32 [[T1]]
elt *test(long long s) {
return new elt[s];
}
}
// test8 with an unsigned type.
namespace test9 {
struct A {
A();
int x;
};
typedef A elt;
// CHECK: define [[A:%.*]]* @_ZN5test94testEy(i64
// CHECK: [[N:%.*]] = load i64, i64*
// CHECK-NEXT: [[T1:%.*]] = trunc i64 [[N]] to i32
// CHECK-NEXT: [[T2:%.*]] = call { i32, i1 } @llvm.umul.with.overflow.i32(i32 [[T1]], i32 4)
// CHECK-NEXT: [[T3:%.*]] = extractvalue { i32, i1 } [[T2]], 1
// CHECK-NEXT: [[T5:%.*]] = extractvalue { i32, i1 } [[T2]], 0
// CHECK-NEXT: [[T6:%.*]] = select i1 [[T3]], i32 -1, i32 [[T5]]
// CHECK-NEXT: call i8* @_Znaj(i32 [[T6]])
// CHECK: getelementptr inbounds {{.*}}, i32 [[T1]]
elt *test(unsigned long long s) {
return new elt[s];
}
}
|