e0ac46e69d
This reverts commit d618f1c3b12effd0c2bdb7d02108d3551f389d3d. This commit wasn't reviewed ahead of time and significant concerns were raised immediately after it landed. According to our developer policy this warrants immediate revert of the commit. https://llvm.org/docs/DeveloperPolicy.html#patch-reversion-policy Differential Revision: https://reviews.llvm.org/D155509
202 lines
6.3 KiB
C++
202 lines
6.3 KiB
C++
// RUN: %clang_cc1 -std=c++14 -triple i386-unknown-unknown %s -emit-llvm -o - | FileCheck %s
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// rdar://problem/9246208
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// Basic test.
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namespace test0 {
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struct A {
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A();
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int x;
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};
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typedef A elt;
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// CHECK: define{{.*}} ptr @_ZN5test04testEs(i16 noundef signext
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// CHECK: [[N:%.*]] = sext i16 {{%.*}} to i32
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// CHECK-NEXT: [[T0:%.*]] = call { i32, i1 } @llvm.umul.with.overflow.i32(i32 [[N]], i32 4)
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// CHECK-NEXT: [[T1:%.*]] = extractvalue { i32, i1 } [[T0]], 1
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// CHECK-NEXT: [[T2:%.*]] = extractvalue { i32, i1 } [[T0]], 0
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// CHECK-NEXT: [[T3:%.*]] = select i1 [[T1]], i32 -1, i32 [[T2]]
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// CHECK-NEXT: call noalias noundef nonnull ptr @_Znaj(i32 noundef [[T3]])
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// CHECK: getelementptr inbounds {{.*}}, i32 [[N]]
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elt *test(short s) {
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return new elt[s];
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}
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}
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// test0 with a nested array.
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namespace test1 {
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struct A {
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A();
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int x;
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};
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typedef A elt[100];
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// CHECK: define{{.*}} ptr @_ZN5test14testEs(i16 noundef signext
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// CHECK: [[N:%.*]] = sext i16 {{%.*}} to i32
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// CHECK-NEXT: [[T0:%.*]] = call { i32, i1 } @llvm.umul.with.overflow.i32(i32 [[N]], i32 400)
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// CHECK-NEXT: [[T1:%.*]] = extractvalue { i32, i1 } [[T0]], 1
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// CHECK-NEXT: [[T2:%.*]] = extractvalue { i32, i1 } [[T0]], 0
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// CHECK-NEXT: [[T3:%.*]] = mul i32 [[N]], 100
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// CHECK-NEXT: [[T4:%.*]] = select i1 [[T1]], i32 -1, i32 [[T2]]
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// CHECK-NEXT: call noalias noundef nonnull ptr @_Znaj(i32 noundef [[T4]])
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// CHECK: getelementptr inbounds {{.*}}, i32 [[T3]]
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elt *test(short s) {
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return new elt[s];
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}
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}
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// test1 with an array cookie.
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namespace test2 {
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struct A {
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A();
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~A();
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int x;
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};
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typedef A elt[100];
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// CHECK: define{{.*}} ptr @_ZN5test24testEs(i16 noundef signext
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// CHECK: [[N:%.*]] = sext i16 {{%.*}} to i32
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// CHECK-NEXT: [[T0:%.*]] = call { i32, i1 } @llvm.umul.with.overflow.i32(i32 [[N]], i32 400)
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// CHECK-NEXT: [[T1:%.*]] = extractvalue { i32, i1 } [[T0]], 1
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// CHECK-NEXT: [[T2:%.*]] = extractvalue { i32, i1 } [[T0]], 0
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// CHECK-NEXT: [[T3:%.*]] = mul i32 [[N]], 100
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// CHECK-NEXT: [[T4:%.*]] = call { i32, i1 } @llvm.uadd.with.overflow.i32(i32 [[T2]], i32 4)
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// CHECK-NEXT: [[T5:%.*]] = extractvalue { i32, i1 } [[T4]], 1
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// CHECK-NEXT: [[T6:%.*]] = or i1 [[T1]], [[T5]]
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// CHECK-NEXT: [[T7:%.*]] = extractvalue { i32, i1 } [[T4]], 0
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// CHECK-NEXT: [[T8:%.*]] = select i1 [[T6]], i32 -1, i32 [[T7]]
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// CHECK-NEXT: call noalias noundef nonnull ptr @_Znaj(i32 noundef [[T8]])
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// CHECK: getelementptr inbounds {{.*}}, i32 [[T3]]
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elt *test(short s) {
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return new elt[s];
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}
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}
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// test0 with a 1-byte element.
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namespace test4 {
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struct A {
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A();
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};
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typedef A elt;
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// CHECK: define{{.*}} ptr @_ZN5test44testEs(i16 noundef signext
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// CHECK: [[N:%.*]] = sext i16 {{%.*}} to i32
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// CHECK-NEXT: call noalias noundef nonnull ptr @_Znaj(i32 noundef [[N]])
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// CHECK: getelementptr inbounds {{.*}}, i32 [[N]]
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elt *test(short s) {
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return new elt[s];
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}
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}
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// test4 with no sext required.
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namespace test5 {
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struct A {
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A();
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};
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typedef A elt;
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// CHECK: define{{.*}} ptr @_ZN5test54testEi(i32
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// CHECK: [[N:%.*]] = load i32, ptr
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// CHECK-NEXT: call noalias noundef nonnull ptr @_Znaj(i32 noundef [[N]])
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// CHECK: getelementptr inbounds {{.*}}, i32 [[N]]
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elt *test(int s) {
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return new elt[s];
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}
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}
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// test0 with an unsigned size.
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namespace test6 {
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struct A {
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A();
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int x;
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};
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typedef A elt;
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// CHECK: define{{.*}} ptr @_ZN5test64testEt(i16 noundef zeroext
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// CHECK: [[N:%.*]] = zext i16 {{%.*}} to i32
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// CHECK-NEXT: [[T0:%.*]] = call { i32, i1 } @llvm.umul.with.overflow.i32(i32 [[N]], i32 4)
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// CHECK-NEXT: [[T1:%.*]] = extractvalue { i32, i1 } [[T0]], 1
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// CHECK-NEXT: [[T2:%.*]] = extractvalue { i32, i1 } [[T0]], 0
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// CHECK-NEXT: [[T3:%.*]] = select i1 [[T1]], i32 -1, i32 [[T2]]
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// CHECK-NEXT: call noalias noundef nonnull ptr @_Znaj(i32 noundef [[T3]])
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// CHECK: getelementptr inbounds {{.*}}, i32 [[N]]
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elt *test(unsigned short s) {
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return new elt[s];
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}
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}
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// test1 with an unsigned size.
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namespace test7 {
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struct A {
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A();
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int x;
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};
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typedef A elt[100];
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// CHECK: define{{.*}} ptr @_ZN5test74testEt(i16 noundef zeroext
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// CHECK: [[N:%.*]] = zext i16 {{%.*}} to i32
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// CHECK-NEXT: [[T0:%.*]] = call { i32, i1 } @llvm.umul.with.overflow.i32(i32 [[N]], i32 400)
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// CHECK-NEXT: [[T1:%.*]] = extractvalue { i32, i1 } [[T0]], 1
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// CHECK-NEXT: [[T2:%.*]] = extractvalue { i32, i1 } [[T0]], 0
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// CHECK-NEXT: [[T3:%.*]] = mul i32 [[N]], 100
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// CHECK-NEXT: [[T4:%.*]] = select i1 [[T1]], i32 -1, i32 [[T2]]
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// CHECK-NEXT: call noalias noundef nonnull ptr @_Znaj(i32 noundef [[T4]])
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// CHECK: getelementptr inbounds {{.*}}, i32 [[T3]]
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elt *test(unsigned short s) {
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return new elt[s];
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}
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}
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// test0 with a signed type larger than size_t.
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namespace test8 {
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struct A {
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A();
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int x;
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};
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typedef A elt;
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// CHECK: define{{.*}} ptr @_ZN5test84testEx(i64
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// CHECK: [[N:%.*]] = load i64, ptr
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// CHECK-NEXT: [[T1:%.*]] = trunc i64 [[N]] to i32
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// CHECK-NEXT: [[T2:%.*]] = call { i32, i1 } @llvm.umul.with.overflow.i32(i32 [[T1]], i32 4)
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// CHECK-NEXT: [[T3:%.*]] = extractvalue { i32, i1 } [[T2]], 1
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// CHECK-NEXT: [[T5:%.*]] = extractvalue { i32, i1 } [[T2]], 0
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// CHECK-NEXT: [[T6:%.*]] = select i1 [[T3]], i32 -1, i32 [[T5]]
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// CHECK-NEXT: call noalias noundef nonnull ptr @_Znaj(i32 noundef [[T6]])
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// CHECK: getelementptr inbounds {{.*}}, i32 [[T1]]
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elt *test(long long s) {
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return new elt[s];
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}
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}
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// test8 with an unsigned type.
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namespace test9 {
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struct A {
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A();
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int x;
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};
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typedef A elt;
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// CHECK: define{{.*}} ptr @_ZN5test94testEy(i64
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// CHECK: [[N:%.*]] = load i64, ptr
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// CHECK-NEXT: [[T1:%.*]] = trunc i64 [[N]] to i32
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// CHECK-NEXT: [[T2:%.*]] = call { i32, i1 } @llvm.umul.with.overflow.i32(i32 [[T1]], i32 4)
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// CHECK-NEXT: [[T3:%.*]] = extractvalue { i32, i1 } [[T2]], 1
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// CHECK-NEXT: [[T5:%.*]] = extractvalue { i32, i1 } [[T2]], 0
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// CHECK-NEXT: [[T6:%.*]] = select i1 [[T3]], i32 -1, i32 [[T5]]
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// CHECK-NEXT: call noalias noundef nonnull ptr @_Znaj(i32 noundef [[T6]])
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// CHECK: getelementptr inbounds {{.*}}, i32 [[T1]]
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elt *test(unsigned long long s) {
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return new elt[s];
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}
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}
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