[clang] [RISCV] Add negative pre-defined macro test for XSfmm* extension. NFC. (PR #150596)

[via cfe-commits]

llvmbot wrote:


<!--LLVM PR SUMMARY COMMENT-->

@llvm/pr-subscribers-backend-risc-v

Author: Jim Lin (tclin914)

<details>
<summary>Changes</summary>



---
Full diff: https://github.com/llvm/llvm-project/pull/150596.diff


1 Files Affected:

- (modified) clang/test/Preprocessor/riscv-target-features-sifive.c (+16) 


``````````diff
diff --git a/clang/test/Preprocessor/riscv-target-features-sifive.c b/clang/test/Preprocessor/riscv-target-features-sifive.c
index e4c03876bd94b..17e84f5f11968 100644
--- a/clang/test/Preprocessor/riscv-target-features-sifive.c
+++ b/clang/test/Preprocessor/riscv-target-features-sifive.c
@@ -1,3 +1,19 @@
+// RUN: %clang --target=riscv32-unknown-linux-gnu -march=rv32i -E -dM %s \
+// RUN:   -o - | FileCheck %s
+// RUN: %clang --target=riscv64-unknown-linux-gnu -march=rv64i -E -dM %s \
+// RUN:   -o - | FileCheck %s
+
+// CHECK-NOT: __riscv_xsfmm128t {{.*$}}
+// CHECK-NOT: __riscv_xsfmm16t {{.*$}}
+// CHECK-NOT: __riscv_xsfmm32a8i {{.*$}}
+// CHECK-NOT: __riscv_xsfmm32a8f {{.*$}}
+// CHECK-NOT: __riscv_xsfmm32a16f {{.*$}}
+// CHECK-NOT: __riscv_xsfmm32a32f {{.*$}}
+// CHECK-NOT: __riscv_xsfmm32a32t {{.*$}}
+// CHECK-NOT: __riscv_xsfmm64a64f {{.*$}}
+// CHECK-NOT: __riscv_xsfmm64t {{.*$}}
+// CHECK-NOT: __riscv_xsfmmbase {{.*$}}
+
 // RUN: %clang --target=riscv32 \
 // RUN:   -march=rv32i_zve32x_xsfmm128t -E -dM %s \
 // RUN:   -o - | FileCheck --check-prefix=CHECK-XSFMM128T %s

``````````

</details>


https://github.com/llvm/llvm-project/pull/150596