[clang] Add SME2 builtins for pfalse and ptrue (PR #71953)

[Matthew Devereau via cfe-commits]

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+// NOTE: Assertions have been autogenerated by utils/update_cc_test_checks.py
+// REQUIRES: aarch64-registered-target
+// RUN: %clang_cc1 -triple aarch64-none-linux-gnu -target-feature +sme2 -S -disable-O0-optnone -Werror -Wall -emit-llvm -o - %s | FileCheck %s
+// RUN: %clang_cc1 -triple aarch64-none-linux-gnu -target-feature +sme2 -S -disable-O0-optnone -Werror -Wall -emit-llvm -o - -x c++ %s | FileCheck %s -check-prefix=CPP-CHECK
+// RUN: %clang_cc1 -triple aarch64-none-linux-gnu -target-feature +sme2 -S -disable-O0-optnone -Werror -Wall -o /dev/null %s
+#include <arm_sve.h>
+
+// CHECK-LABEL: @test_svptrue_c8_attr(
+// CHECK-NEXT:  entry:
+// CHECK-NEXT:    [[TMP0:%.*]] = call target("aarch64.svcount") @llvm.aarch64.sve.ptrue.c8()
+// CHECK-NEXT:    ret target("aarch64.svcount") [[TMP0]]
+//
+// CPP-CHECK-LABEL: @_Z20test_svptrue_c8_attrv(
+// CPP-CHECK-NEXT:  entry:
+// CPP-CHECK-NEXT:    [[TMP0:%.*]] = call target("aarch64.svcount") @llvm.aarch64.sve.ptrue.c8()
+// CPP-CHECK-NEXT:    ret target("aarch64.svcount") [[TMP0]]
+//
+svcount_t test_svptrue_c8_attr(void) __arm_streaming {
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MDevereau wrote:

Done

https://github.com/llvm/llvm-project/pull/71953