Adding a new #pragma for the vectorize and interleave optimization hints.
Patch thanks to Tyler Nowicki!
llvm-svn: 210330
diff --git a/clang/test/Parser/pragma-loop.cpp b/clang/test/Parser/pragma-loop.cpp
new file mode 100644
index 0000000..e515eb4
--- /dev/null
+++ b/clang/test/Parser/pragma-loop.cpp
@@ -0,0 +1,132 @@
+// RUN: %clang_cc1 -std=c++11 -verify %s
+
+// Note that this puts the expected lines before the directives to work around
+// limitations in the -verify mode.
+
+void test(int *List, int Length) {
+ int i = 0;
+
+#pragma clang loop vectorize(enable)
+#pragma clang loop interleave(enable)
+ while (i + 1 < Length) {
+ List[i] = i;
+ }
+
+#pragma clang loop vectorize_width(4)
+#pragma clang loop interleave_count(8)
+ while (i < Length) {
+ List[i] = i;
+ }
+
+#pragma clang loop vectorize(disable)
+#pragma clang loop interleave(disable)
+ while (i - 1 < Length) {
+ List[i] = i;
+ }
+
+#pragma clang loop vectorize_width(4) interleave_count(8)
+ while (i - 2 < Length) {
+ List[i] = i;
+ }
+
+#pragma clang loop interleave_count(16)
+ while (i - 3 < Length) {
+ List[i] = i;
+ }
+
+ int VList[Length];
+#pragma clang loop vectorize(disable) interleave(disable)
+ for (int j : VList) {
+ VList[j] = List[j];
+ }
+
+/* expected-error {{expected '('}} */ #pragma clang loop vectorize
+/* expected-error {{expected '('}} */ #pragma clang loop interleave
+
+/* expected-error {{expected ')'}} */ #pragma clang loop vectorize(enable
+/* expected-error {{expected ')'}} */ #pragma clang loop interleave(enable
+
+/* expected-error {{expected ')'}} */ #pragma clang loop vectorize_width(4
+/* expected-error {{expected ')'}} */ #pragma clang loop interleave_count(4
+
+/* expected-error {{missing option}} */ #pragma clang loop
+/* expected-error {{invalid option 'badkeyword'}} */ #pragma clang loop badkeyword
+/* expected-error {{invalid option 'badkeyword'}} */ #pragma clang loop badkeyword(enable)
+/* expected-error {{invalid option 'badkeyword'}} */ #pragma clang loop vectorize(enable) badkeyword(4)
+/* expected-warning {{extra tokens at end of '#pragma clang loop'}} */ #pragma clang loop vectorize(enable) ,
+
+ while (i-4 < Length) {
+ List[i] = i;
+ }
+
+/* expected-error {{invalid value 0; expected a positive integer value}} */ #pragma clang loop vectorize_width(0)
+/* expected-error {{invalid value 0; expected a positive integer value}} */ #pragma clang loop interleave_count(0)
+ while (i-5 < Length) {
+ List[i] = i;
+ }
+
+/* expected-error {{invalid value -1294967296; expected a positive integer value}} */ #pragma clang loop vectorize_width(3000000000)
+/* expected-error {{invalid value -1294967296; expected a positive integer value}} */ #pragma clang loop interleave_count(3000000000)
+ while (i-6 < Length) {
+ List[i] = i;
+ }
+
+/* expected-error {{missing value; expected a positive integer value}} */ #pragma clang loop vectorize_width(badvalue)
+/* expected-error {{missing value; expected a positive integer value}} */ #pragma clang loop interleave_count(badvalue)
+ while (i-6 < Length) {
+ List[i] = i;
+ }
+
+/* expected-error {{invalid keyword 'badidentifier'; expected 'enable' or 'disable'}} */ #pragma clang loop vectorize(badidentifier)
+/* expected-error {{invalid keyword 'badidentifier'; expected 'enable' or 'disable'}} */ #pragma clang loop interleave(badidentifier)
+ while (i-7 < Length) {
+ List[i] = i;
+ }
+
+#pragma clang loop vectorize(enable)
+/* expected-error {{expected a for, while, or do-while loop to follow the '#pragma clang loop' directive}} */ int j = Length;
+ List[0] = List[1];
+
+ while (j-1 < Length) {
+ List[j] = j;
+ }
+
+// FIXME: A bug in ParsedAttributes causes the order of the attributes to be
+// processed in reverse. Consequently, the errors occur on the first of pragma
+// of the next three tests rather than the last, and the order of the kinds
+// is also reversed.
+
+/* expected-error {{incompatible directives 'vectorize(disable)' and 'vectorize_width(4)'}} */ #pragma clang loop vectorize_width(4)
+#pragma clang loop vectorize(disable)
+/* expected-error {{incompatible directives 'interleave(disable)' and 'interleave_count(4)'}} */ #pragma clang loop interleave_count(4)
+#pragma clang loop interleave(disable)
+ while (i-8 < Length) {
+ List[i] = i;
+ }
+
+/* expected-error {{duplicate directives 'vectorize(disable)' and 'vectorize(enable)'}} */ #pragma clang loop vectorize(enable)
+#pragma clang loop vectorize(disable)
+/* expected-error {{duplicate directives 'interleave(disable)' and 'interleave(enable)'}} */ #pragma clang loop interleave(enable)
+#pragma clang loop interleave(disable)
+ while (i-9 < Length) {
+ List[i] = i;
+ }
+
+/* expected-error {{incompatible directives 'vectorize_width(4)' and 'vectorize(disable)'}} */ #pragma clang loop vectorize(disable)
+#pragma clang loop vectorize_width(4)
+/* expected-error {{incompatible directives 'interleave_count(4)' and 'interleave(disable)'}} */ #pragma clang loop interleave(disable)
+#pragma clang loop interleave_count(4)
+ while (i-10 < Length) {
+ List[i] = i;
+ }
+
+/* expected-error {{duplicate directives 'vectorize_width(4)' and 'vectorize_width(8)'}} */ #pragma clang loop vectorize_width(8)
+#pragma clang loop vectorize_width(4)
+/* expected-error {{duplicate directives 'interleave_count(4)' and 'interleave_count(8)'}} */ #pragma clang loop interleave_count(8)
+#pragma clang loop interleave_count(4)
+ while (i-11 < Length) {
+ List[i] = i;
+ }
+
+#pragma clang loop interleave(enable)
+/* expected-error {{expected statement}} */ }