123 lines
4 KiB
C++
123 lines
4 KiB
C++
// RUN: %clang_cc1 -g -emit-llvm -o - %s | FileCheck %s
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// Make sure that clang outputs distinct debug info for a function
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// that is inlined twice on the same line. Otherwise it would appear
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// as if the function was only inlined once.
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#define INLINE inline __attribute__((always_inline))
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INLINE int
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product (int x, int y)
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{
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int result = x * y;
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return result;
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}
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INLINE int
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sum (int a, int b)
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{
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int result = a + b;
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return result;
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}
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int
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strange_max (int m, int n)
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{
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if (m > n)
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return m;
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else if (n > m)
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return n;
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else
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return 0;
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}
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int
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foo (int i, int j)
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{
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if (strange_max (i, j) == i)
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return product (i, j);
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else if (strange_max (i, j) == j)
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return sum (i, j);
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else
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return product (sum (i, i), sum (j, j));
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}
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int
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main(int argc, char const *argv[])
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{
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int array[3];
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int n;
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array[0] = foo (1238, 78392);
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array[1] = foo (379265, 23674);
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array[2] = foo (872934, 234);
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n = strange_max(array[0], strange_max(array[1], array[2]));
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return n & 0xf;
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}
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// CHECK: define {{.*}} @_Z3fooii
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// i
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// CHECK: call void @llvm.dbg.declare
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// j
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// CHECK: call void @llvm.dbg.declare
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// x
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// CHECK: call void @llvm.dbg.declare
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// y
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// CHECK: call void @llvm.dbg.declare
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// result
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// CHECK: call void @llvm.dbg.declare
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// CHECK: call void @llvm.dbg.declare(metadata !{i32* %{{.*}}}, metadata ![[A_MD:[0-9]+]]), !dbg ![[A_DI:[0-9]+]]
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// CHECK: call void @llvm.dbg.declare(metadata !{i32* %{{.*}}}, metadata ![[B_MD:[0-9]+]]), !dbg ![[B_DI:[0-9]+]]
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// result
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// CHECK: call void @llvm.dbg.declare
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// We want to see a distinct !dbg node.
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// CHECK-NOT: call void @llvm.dbg.declare(metadata !{i32* %{{.*}}}, metadata ![[A_MD]]), !dbg ![[A_DI]]
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// CHECK: call void @llvm.dbg.declare(metadata !{i32* %{{.*}}}, metadata ![[A_MD]]), !dbg !{{.*}}
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// CHECK-NOT: call void @llvm.dbg.declare(metadata !{i32* %{{.*}}}, metadata ![[B_MD]]), !dbg ![[B_DI]]
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// CHECK: call void @llvm.dbg.declare(metadata !{i32* %{{.*}}}, metadata ![[B_MD]]), !dbg !{{.*}}
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// result
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// CHECK: call void @llvm.dbg.declare
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// We want to see a distinct !dbg node.
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// CHECK-NOT: call void @llvm.dbg.declare(metadata !{i32* %{{.*}}}, metadata ![[A_MD]]), !dbg ![[A_DI]]
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// CHECK: call void @llvm.dbg.declare(metadata !{i32* %{{.*}}}, metadata ![[A_MD]]), !dbg !{{.*}}
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// CHECK-NOT: call void @llvm.dbg.declare(metadata !{i32* %{{.*}}}, metadata ![[B_MD]]), !dbg ![[B_DI]]
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// CHECK: call void @llvm.dbg.declare(metadata !{i32* %{{.*}}}, metadata ![[B_MD]]), !dbg !{{.*}}
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// result
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// CHECK: call void @llvm.dbg.declare
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// Again: we want to see a distinct !dbg node.
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// CHECK: call void @llvm.dbg.declare(metadata !{i32* %{{.*}}}, metadata ![[X_MD:[0-9]+]]), !dbg ![[X_DI:[0-9]+]]
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// CHECK: call void @llvm.dbg.declare(metadata !{i32* %{{.*}}}, metadata ![[Y_MD:[0-9]+]]), !dbg ![[Y_DI:[0-9]+]]
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// result
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// CHECK: call void @llvm.dbg.declare
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// CHECK: define {{.*}} @main
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// CHECK: call {{.*}} @_Z3fooii
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// CHECK: call {{.*}} @_Z3fooii
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// CHECK: call {{.*}} @_Z3fooii
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// CHECK: store
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// CHECK: getelementptr
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// We want to see the same !dbg node for non-inlined functions.
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// Needed for GDB compatibility.
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// CHECK: load {{.*}} !dbg ![[DBG:.*]]
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// CHECK: load {{.*}} !dbg ![[DBG]]
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// CHECK: load {{.*}} !dbg ![[DBG]]
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// CHECK: call {{.*}} @_Z11strange_maxii(i32 {{.*}}, i32 {{.*}}), !dbg ![[DBG]]
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// CHECK: call {{.*}} @_Z11strange_maxii(i32 {{.*}}, i32 {{.*}}), !dbg ![[DBG]]
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// Verify that product() has its own inlined_at location at column 15.
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// CHECK-DAG: ![[A_MD]] = metadata{{.*}}[ DW_TAG_arg_variable ] [a]
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// CHECK-DAG: ![[B_MD]] = metadata{{.*}}[ DW_TAG_arg_variable ] [b]
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// CHECK-DAG: ![[X_MD]] = metadata{{.*}}[ DW_TAG_arg_variable ] [x]
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// CHECK-DAG: ![[Y_MD]] = metadata{{.*}}[ DW_TAG_arg_variable ] [y]
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// CHECK-DAG: ![[X_DI]] = metadata !{i32 {{[0-9]+}}, i32 {{[0-9]+}}, metadata !{{[0-9]+}}, metadata ![[PRODUCT:[0-9]+]]}
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// CHECK-DAG: [[PRODUCT]] = metadata !{i32 {{.*}}, i32 16, metadata !{{.*}}, null}
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// CHECK-DAG: ![[Y_DI]] = metadata !{i32 {{[0-9]+}}, i32 {{[0-9]+}}, metadata !{{[0-9]+}}, metadata ![[PRODUCT]]}
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