[clang] [llvm] [PowerPC] Add support for -mcpu=pwr11 / -mtune=pwr11 (PR #99511)

[David Tenty via cfe-commits]

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@@ -632,13 +632,33 @@
 // PPCPOWER10:#define __PCREL__ 1
 // PPCPOWER10-NOT:#define __ROP_PROTECT__ 1
 //
+// RUN: %clang_cc1 -E -dM -ffreestanding -triple=powerpc64-none-none -target-cpu pwr11 -fno-signed-char < /dev/null | FileCheck -match-full-lines -check-prefix PPCPOWER11 %s
+// RUN: %clang_cc1 -E -dM -ffreestanding -triple=powerpc64-none-none -target-cpu power11 -fno-signed-char < /dev/null | FileCheck -match-full-lines -check-prefix PPCPOWER11 %s
+//
+// PPCPOWER11:#define _ARCH_PPC 1
+// PPCPOWER11:#define _ARCH_PPC64 1
+// PPCPOWER11:#define _ARCH_PPCGR 1
+// PPCPOWER11:#define _ARCH_PPCSQ 1
+// PPCPOWER11:#define _ARCH_PWR10 1
+// PPCPOWER11:#define _ARCH_PWR11 1
+// PPCPOWER11:#define _ARCH_PWR4 1
+// PPCPOWER11:#define _ARCH_PWR5 1
+// PPCPOWER11:#define _ARCH_PWR5X 1
+// PPCPOWER11:#define _ARCH_PWR6 1
+// PPCPOWER11-NOT:#define _ARCH_PWR6X 1
+// PPCPOWER11:#define _ARCH_PWR7 1
+// PPCPOWER11:#define _ARCH_PWR8 1
+// PPCPOWER11:#define _ARCH_PWR9 1
+// PPCPOWER11-NOT:#define __ROP_PROTECT__ 1
----------------
daltenty wrote:

Should we not have the MMA and PCREL macros here too?

```suggestion
// PPCPOWER11:#define __MMA__ 1
// PPCPOWER11:#define __PCREL__ 1
// PPCPOWER11-NOT:#define __ROP_PROTECT__ 1
```

https://github.com/llvm/llvm-project/pull/99511