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82b51a1428
This change: - Modifies the ACLE code to allow the new SLC value (3) for the prefetch target. - Introduces a new intrinsic, @llvm.aarch64.prefetch which matches the PRFM family instructions much more closely, and can represent all values for the PRFM immediate. The target-independent @llvm.prefetch intrinsic does not have enough information for us to be able to lower to it from the ACLE intrinsics correctly. - Lowers the acle calls to the new intrinsic on aarch64 (the ARM lowering is unchanged). - Implements code generation for the new intrinsic in both SelectionDAG and GlobalISel. We specifically choose to continue to support lowering the target-independent @llvm.prefetch intrinsic so that other frontends can continue to use it. Differential Revision: https://reviews.llvm.org/D139443
32 lines
1.3 KiB
C
32 lines
1.3 KiB
C
// RUN: %clang_cc1 -triple arm64-apple-ios -fsyntax-only -verify %s
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// RUN: %clang_cc1 -triple arm64-apple-ios -DTEST1 -fsyntax-only -verify %s
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#ifdef TEST1
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void __clear_cache(void *start, void *end);
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#endif
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void test_clear_cache_chars(char *start, char *end) {
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__clear_cache(start, end);
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}
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void test_clear_cache_voids(void *start, void *end) {
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__clear_cache(start, end);
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}
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void test_clear_cache_no_args(void) {
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__clear_cache(); // expected-error {{too few arguments to function call}}
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}
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void test_memory_barriers(void) {
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__builtin_arm_dmb(16); // expected-error-re {{argument value {{.*}} is outside the valid range}}
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__builtin_arm_dsb(17); // expected-error-re {{argument value {{.*}} is outside the valid range}}
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__builtin_arm_isb(18); // expected-error-re {{argument value {{.*}} is outside the valid range}}
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}
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void test_prefetch(void) {
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__builtin_arm_prefetch(0, 2, 0, 0, 0); // expected-error-re {{argument value {{.*}} is outside the valid range}}
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__builtin_arm_prefetch(0, 0, 4, 0, 0); // expected-error-re {{argument value {{.*}} is outside the valid range}}
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__builtin_arm_prefetch(0, 0, 0, 2, 0); // expected-error-re {{argument value {{.*}} is outside the valid range}}
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__builtin_arm_prefetch(0, 0, 0, 0, 2); // expected-error-re {{argument value {{.*}} is outside the valid range}}
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}
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