[clang] [AArch64][SME] Warn when using a streaming builtin from a non-streaming function (PR #74064)
Sam Tebbs via cfe-commits
cfe-commits at lists.llvm.org
Tue Dec 5 02:40:18 PST 2023
================
@@ -6,20 +6,20 @@
#include <arm_sme_draft_spec_subject_to_change.h>
__attribute__((target("sme")))
-void test_sme(svbool_t pg, void *ptr) {
+void test_sme(svbool_t pg, void *ptr) __arm_streaming {
svld1_hor_za8(0, 0, pg, ptr);
}
__attribute__((target("arch=armv8-a+sme")))
-void test_arch_sme(svbool_t pg, void *ptr) {
+void test_arch_sme(svbool_t pg, void *ptr) __arm_streaming {
svld1_hor_vnum_za32(0, 0, pg, ptr, 0);
}
__attribute__((target("+sme")))
-void test_plus_sme(svbool_t pg, void *ptr) {
+void test_plus_sme(svbool_t pg, void *ptr) __arm_streaming {
svst1_ver_za16(0, 0, pg, ptr);
}
-void undefined(svbool_t pg, void *ptr) {
- svst1_ver_vnum_za64(0, 0, pg, ptr, 0); // expected-error {{'svst1_ver_vnum_za64' needs target feature sme}}
+void undefined(svbool_t pg, void *ptr) __arm_streaming { // expected-error {{function executed in streaming-SVE mode requires 'sme'}}
----------------
SamTebbs33 wrote:
With the streaming attribute added, the error is thrown for the function signature line, so it has to be on this line.
https://github.com/llvm/llvm-project/pull/74064
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