a42e515e3a
This is a minimal patch to support parsing for "omp assume" directives. These are meant to be hints to a compiler's optimisers: as such, it is legitimate (if not very useful) to ignore them. The patch builds on top of the existing support for "omp assumes" directives (note spelling!). Unlike the "omp [begin/end] assumes" directives, "omp assume" is associated with a compound statement, i.e. it can appear within a function. The "holds" assumption could (theoretically) be mapped onto the existing builtin "__builtin_assume", though the latter applies to a single point in the program, and the former to a range (i.e. the whole of the associated compound statement). This patch fixes sollve's OpenMP 5.1 "omp assume"-based tests.
31 lines
1.1 KiB
C
31 lines
1.1 KiB
C
// RUN: %clang_cc1 -triple=x86_64-linux-gnu -verify -fopenmp -x c -std=c99 %s
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// RUN: %clang_cc1 -triple=x86_64-linux-gnu -verify -fopenmp-simd -x c -std=c99 %s
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[[omp::directive(assume no_openmp)]] // expected-error {{unexpected OpenMP directive '#pragma omp assume'}}
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void foo(void) {
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[[omp::directive(assume hold(1==1))]] // expected-warning {{extra tokens at the end of '#pragma omp assume' are ignored}}
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{}
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}
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void bar(void) {
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[[omp::directive(assume absent(target))]]
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} // expected-error {{expected statement}}
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void qux(void) {
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[[omp::directive(assume extra_bits)]] // expected-warning {{extra tokens at the end of '#pragma omp assume' are ignored}}
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{}
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}
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void quux(void) {
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// This form of spelling for assumption clauses is supported for
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// "omp assumes" (as a non-standard extension), but not here.
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[[omp::directive(assume ext_spelled_like_this)]] // expected-warning {{extra tokens at the end of '#pragma omp assume' are ignored}}
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{}
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}
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void dups(void) {
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[[omp::directive(assume no_openmp no_openmp)]] // expected-error {{directive '#pragma omp assume' cannot contain more than one 'no_openmp' clause}}
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{}
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}
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