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, 4 insertions, 4 deletions

diff --git a/llvm/test/CodeGen/PowerPC/rotl.ll b/llvm/test/CodeGen/PowerPC/rotl.ll
index 35780de887c..5204d28a144 100644
--- a/llvm/test/CodeGen/PowerPC/rotl.ll
+++ b/llvm/test/CodeGen/PowerPC/rotl.ll
@@ -1,7 +1,7 @@
-; RUN: llc -verify-machineinstrs < %s -march=ppc32 | grep rotrw: | count 1
-; RUN: llc -verify-machineinstrs < %s -march=ppc32 | grep rotlw: | count 1
-; RUN: llc -verify-machineinstrs < %s -march=ppc32 | grep rotlwi: | count 1
-; RUN: llc -verify-machineinstrs < %s -march=ppc32 | grep rotrwi: | count 1
+; RUN: llc -verify-machineinstrs < %s -mtriple=ppc32-- | grep rotrw: | count 1
+; RUN: llc -verify-machineinstrs < %s -mtriple=ppc32-- | grep rotlw: | count 1
+; RUN: llc -verify-machineinstrs < %s -mtriple=ppc32-- | grep rotlwi: | count 1
+; RUN: llc -verify-machineinstrs < %s -mtriple=ppc32-- | grep rotrwi: | count 1
 
 define i32 @rotlw(i32 %x, i32 %sh) {
 entry: