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dc5ce72afa
Recommit of r335084 after revert in r335516. ... instead of prepending it at the beginning (the original behavior since implemented in r122535 2010-12-23). This builds up an AttributeList in the the order in which the attributes appear in the source. The reverse order caused nodes for attributes in the AST (e.g. LoopHint) to be in the reverse order, and therefore printed in the wrong order in -ast-dump. Some TODO comments mention this. The order was explicitly reversed for enable_if attribute overload resolution and name mangling, which is not necessary anymore with this patch. The change unfortunately has some secondary effect, especially on diagnostic output. In the simplest cases, the CHECK lines or expected diagnostic were changed to the the new output. If the kind of error/warning changed, the attributes' order was changed instead. This unfortunately causes some 'previous occurrence here' hints to be textually after the main marker. This typically happens when attributes are merged, but are incompatible to each other. Interchanging the role of the the main and note SourceLocation will also cause the case where two different declaration's attributes (in contrast to multiple attributes of the same declaration) are merged to be reverse. There is no easy fix because sometimes previous attributes are merged into a new declaration's attribute list, sometimes new attributes are added to a previous declaration's attribute list. Since 'previous occurrence here' pointing to locations after the main marker is not rare, I left the markers as-is; it is only relevant when the attributes are declared in the same declaration anyway. Differential Revision: https://reviews.llvm.org/D48100 llvm-svn: 338800
114 lines
3.3 KiB
C++
114 lines
3.3 KiB
C++
// RUN: %clang_cc1 -std=c++11 -verify %s
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// Note that this puts the expected lines before the directives to work around
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// limitations in the -verify mode.
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void test(int *List, int Length) {
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int i = 0;
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#pragma unroll
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while (i + 1 < Length) {
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List[i] = i;
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}
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#pragma nounroll
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while (i < Length) {
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List[i] = i;
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}
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#pragma unroll 4
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while (i - 1 < Length) {
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List[i] = i;
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}
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#pragma unroll(8)
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while (i - 2 < Length) {
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List[i] = i;
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}
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/* expected-error {{expected ')'}} */ #pragma unroll(4
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/* expected-error {{missing argument; expected an integer value}} */ #pragma unroll()
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/* expected-warning {{extra tokens at end of '#pragma unroll'}} */ #pragma unroll 1 2
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while (i-6 < Length) {
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List[i] = i;
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}
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/* expected-warning {{extra tokens at end of '#pragma nounroll'}} */ #pragma nounroll 1
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while (i-7 < Length) {
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List[i] = i;
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}
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/* expected-error {{expected ')'}} */ #pragma unroll(()
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/* expected-error {{expected expression}} */ #pragma unroll -
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/* expected-error {{invalid value '0'; must be positive}} */ #pragma unroll(0)
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/* expected-error {{invalid value '0'; must be positive}} */ #pragma unroll 0
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/* expected-error {{value '3000000000' is too large}} */ #pragma unroll(3000000000)
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/* expected-error {{value '3000000000' is too large}} */ #pragma unroll 3000000000
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while (i-8 < Length) {
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List[i] = i;
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}
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#pragma unroll
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/* expected-error {{expected a for, while, or do-while loop to follow '#pragma unroll'}} */ int j = Length;
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#pragma unroll 4
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/* expected-error {{expected a for, while, or do-while loop to follow '#pragma unroll'}} */ int k = Length;
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#pragma nounroll
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/* expected-error {{expected a for, while, or do-while loop to follow '#pragma nounroll'}} */ int l = Length;
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#pragma unroll 4
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/* expected-error {{incompatible directives 'unroll(disable)' and '#pragma unroll(4)'}} */ #pragma clang loop unroll(disable)
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while (i-10 < Length) {
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List[i] = i;
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}
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#pragma unroll(4)
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/* expected-error {{incompatible directives 'unroll(full)' and '#pragma unroll(4)'}} */ #pragma clang loop unroll(full)
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while (i-11 < Length) {
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List[i] = i;
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}
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#pragma unroll(4)
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/* expected-error {{incompatible directives 'unroll(enable)' and '#pragma unroll(4)'}} */ #pragma clang loop unroll(enable)
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while (i-11 < Length) {
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List[i] = i;
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}
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#pragma unroll(4)
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/* expected-error {{incompatible directives '#pragma unroll' and '#pragma unroll(4)'}} */ #pragma unroll
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while (i-11 < Length) {
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List[i] = i;
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}
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#pragma clang loop unroll_count(4)
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/* expected-error {{incompatible directives '#pragma nounroll' and 'unroll_count(4)'}} */ #pragma nounroll
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while (i-12 < Length) {
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List[i] = i;
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}
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#pragma nounroll
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/* expected-error {{duplicate directives '#pragma nounroll' and '#pragma nounroll'}} */ #pragma nounroll
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while (i-13 < Length) {
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List[i] = i;
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}
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#pragma unroll
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/* expected-error {{duplicate directives '#pragma unroll' and '#pragma unroll'}} */ #pragma unroll
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while (i-14 < Length) {
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List[i] = i;
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}
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#pragma unroll
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/* expected-error {{duplicate directives '#pragma unroll' and 'unroll(full)'}} */ #pragma clang loop unroll(full)
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while (i-15 < Length) {
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List[i] = i;
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}
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#pragma unroll 4
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/* expected-error {{duplicate directives '#pragma unroll(4)' and '#pragma unroll(4)'}} */ #pragma unroll(4)
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while (i-16 < Length) {
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List[i] = i;
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}
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#pragma unroll
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/* expected-error {{expected statement}} */ }
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