3606f5508b
The loop convert tests for conflicting names have been extended to check for macro names, types, and language keywords including language extensions. Tests have also been added. Fixes PR15322 Author: Jack Yang <jack.yang@intel.com> Reviewer: gribozavr, klimek, revane llvm-svn: 176690
60 lines
1.7 KiB
C++
60 lines
1.7 KiB
C++
// RUN: grep -Ev "// *[A-Z-]+:" %s > %t.cpp
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// RUN: cpp11-migrate -loop-convert %t.cpp -- -I %S/Inputs
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// RUN: FileCheck -input-file=%t.cpp %s
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#include "structures.h"
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const int N = 10;
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Val Arr[N];
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Val &func(Val &);
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void aliasing() {
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// If the loop container is only used for a declaration of a temporary
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// variable to hold each element, we can name the new variable for the
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// converted range-based loop as the temporary variable's name.
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// In the following case, "t" is used as a temporary variable to hold each
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// element, and thus we consider the name "t" aliased to the loop.
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// The extra blank braces are left as a placeholder for after the variable
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// declaration is deleted.
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for (int i = 0; i < N; ++i) {
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Val &t = Arr[i]; { }
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int y = t.x;
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}
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// CHECK: for (auto & t : Arr)
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// CHECK-NOT: Val &{{[a-z_]+}} =
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// CHECK-NEXT: { }
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// CHECK-NEXT: int y = t.x;
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// The container was not only used to initialize a temporary loop variable for
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// the container's elements, so we do not alias the new loop variable.
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for (int i = 0; i < N; ++i) {
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Val &t = Arr[i];
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int y = t.x;
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int z = Arr[i].x + t.x;
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}
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// CHECK: for (auto & elem : Arr)
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// CHECK-NEXT: Val &t = elem;
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// CHECK-NEXT: int y = t.x;
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// CHECK-NEXT: int z = elem.x + t.x;
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for (int i = 0; i < N; ++i) {
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Val t = Arr[i];
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int y = t.x;
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int z = Arr[i].x + t.x;
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}
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// CHECK: for (auto & elem : Arr)
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// CHECK-NEXT: Val t = elem;
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// CHECK-NEXT: int y = t.x;
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// CHECK-NEXT: int z = elem.x + t.x;
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for (int i = 0; i < N; ++i) {
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Val &t = func(Arr[i]);
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int y = t.x;
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}
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// CHECK: for (auto & elem : Arr)
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// CHECK-NEXT: Val &t = func(elem);
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// CHECK-NEXT: int y = t.x;
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}
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