Update the cpu specified on some PPC regression tests

Some of these tests did not specify a cpu but were also sensitive to
instruction scheduling and/or register assignment choices. A few others
similarly-sensitive tests specified a cpu (often the POWER7), and while the P7
currently uses the default model for PPC64, this will soon change. For those
tests which should not really be cpu-dependent anyway, the cpu is set to the
generic 'ppc64'.

llvm-svn: 195977
diff --git a/llvm/test/CodeGen/PowerPC/structsinmem.ll b/llvm/test/CodeGen/PowerPC/structsinmem.ll
index 5b8dead..b5552af 100644
--- a/llvm/test/CodeGen/PowerPC/structsinmem.ll
+++ b/llvm/test/CodeGen/PowerPC/structsinmem.ll
@@ -1,4 +1,4 @@
-; RUN: llc -mcpu=pwr7 -O0 -disable-fp-elim -fast-isel=false < %s | FileCheck %s
+; RUN: llc -mcpu=ppc64 -O0 -disable-fp-elim -fast-isel=false < %s | FileCheck %s
 
 target datalayout = "E-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v128:128:128-n32:64"
 target triple = "powerpc64-unknown-linux-gnu"