[clang] [PPC] Disable vsx and altivec when -msoft-float is used (PR #100450)

[Chen Zheng via cfe-commits]

================
@@ -0,0 +1,26 @@
+// RUN: %clang -target powerpc64-unknown-unknown -mcpu=pwr10 -msoft-float -S -emit-llvm %s -o - | FileCheck %s -check-prefix=CHECKSOFT
+// RUN: %clang -target powerpc64-unknown-unknown -mcpu=pwr10 -S -emit-llvm %s -o - | FileCheck %s -check-prefix=CHECKNOSOFT
+
+int main () {
+  return 0;
+}
+
+// CHECKSOFT-DAG: -hard-float
+// CHECKSOFT-DAG: -vsx
+// CHECKSOFT-DAG: -altivec
+// CHECKSOFT-DAG: -direct-move,
+// CHECKSOFT-DAG: -float128
+// CHECKSOFT-DAG: -mma
+// CHECKSOFT-DAG: -paired-vector-memops
+// CHECKSOFT-DAG: -power10-vector
+// CHECKSOFT-DAG: -power9-vector
+// CHECKSOFT-DAG: -power8-vector
+
+// CHECKNOSOFT-DAG: +vsx
+// CHECKNOSOFT-DAG: +altivec
+// CHECKNOSOFT-DAG: +direct-move,
----------------
chenzheng1030 wrote:

Ditto

https://github.com/llvm/llvm-project/pull/100450