From 3cb53c10831be59d967d9dce8e7980fee4703500 Mon Sep 17 00:00:00 2001
From: Sebastian Huber <sebastian.huber@embedded-brains.de>
Date: Tue, 18 Jan 2022 12:44:53 +0100
Subject: [PATCH] powerpc: Fix asm machine directive for some CPUs

For some CPUs, the assembler machine directive cannot be determined by ISA
flags.

gcc/

	PR target/104090
	* config/rs6000/rs6000.c (rs6000_machine_from_flags): Use also
	rs6000_cpu.
---
 gcc/config/rs6000/rs6000.c | 28 ++++++++++++++++++++++++++++
 1 file changed, 28 insertions(+)

--- a/gcc/config/rs6000/rs6000.c
+++ b/gcc/config/rs6000/rs6000.c
@@ -5780,6 +5780,34 @@ const char *rs6000_machine;
 const char *
 rs6000_machine_from_flags (void)
 {
+  /* For some CPUs, the machine cannot be determined by ISA flags.  We have to
+     check them first.  */
+  switch (rs6000_cpu)
+    {
+    case PROCESSOR_PPC8540:
+    case PROCESSOR_PPC8548:
+      return "e500";
+
+    case PROCESSOR_PPCE300C2:
+    case PROCESSOR_PPCE300C3:
+      return "e300";
+
+    case PROCESSOR_PPCE500MC:
+      return "e500mc";
+
+    case PROCESSOR_PPCE500MC64:
+      return "e500mc64";
+
+    case PROCESSOR_PPCE5500:
+      return "e5500";
+
+    case PROCESSOR_PPCE6500:
+      return "e6500";
+
+    default:
+      break;
+    }
+
   HOST_WIDE_INT flags = rs6000_isa_flags;
 
   /* Disable the flags that should never influence the .machine selection.  */
