PowerPC: Do not use llc -march in tests.

`llc -march` is problematic because it only switches the target
architecture, but leaves the operating system unchanged. This
occasionally leads to indeterministic tests because the OS from
LLVM_DEFAULT_TARGET_TRIPLE is used.

However we can simply always use `llc -mtriple` instead. This changes
all the tests to do this to avoid people using -march when they copy and
paste parts of tests.

This patch:
- Removes -march if the .ll file already has a matching `target triple`
  directive or -mtriple argument.
- In all other cases changes -march=ppc32/-march=ppc64 to
  -mtriple=ppc32--/-mtriple=ppc64--

See also the discussion in https://reviews.llvm.org/D35287

llvm-svn: 309754

1 files changed, 3 insertions, 5 deletions

diff --git a/llvm/test/CodeGen/PowerPC/retaddr.ll b/llvm/test/CodeGen/PowerPC/retaddr.ll
index d8b6a18d316..3794f6e12af 100644
--- a/llvm/test/CodeGen/PowerPC/retaddr.ll
+++ b/llvm/test/CodeGen/PowerPC/retaddr.ll
@@ -1,8 +1,6 @@
-; RUN: llc -verify-machineinstrs < %s -march=ppc32 | grep mflr
-; RUN: llc -verify-machineinstrs < %s -march=ppc32 | grep lwz
-; RUN: llc -verify-machineinstrs < %s -march=ppc64 | grep "ld r., 16(r1)"
-
-target triple = "powerpc-apple-darwin8"
+; RUN: llc -verify-machineinstrs < %s -mtriple=powerpc-apple-darwin8 | grep mflr
+; RUN: llc -verify-machineinstrs < %s -mtriple=powerpc-apple-darwin8 | grep lwz
+; RUN: llc -verify-machineinstrs < %s -mtriple=powerpc64-apple-darwin8 | grep "ld r., 16(r1)"
 
 define void @foo(i8** %X) nounwind {
 entry: