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

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@309754 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 2 insertions, 3 deletions

diff --git a/test/CodeGen/PowerPC/2007-05-30-dagcombine-miscomp.ll b/test/CodeGen/PowerPC/2007-05-30-dagcombine-miscomp.ll
index a5e17c62e08..1f8f5eb8946 100644
--- a/test/CodeGen/PowerPC/2007-05-30-dagcombine-miscomp.ll
+++ b/test/CodeGen/PowerPC/2007-05-30-dagcombine-miscomp.ll
@@ -1,9 +1,8 @@
+; RUN: llc -verify-machineinstrs < %s | grep "rlwinm r3, r3, 23, 30, 30"
+; PR1473
 target datalayout = "E-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64"
 target triple = "powerpc-apple-darwin8.8.0"
 
-; RUN: llc -verify-machineinstrs < %s -march=ppc32 | grep "rlwinm r3, r3, 23, 30, 30"
-; PR1473
-
 define zeroext i8 @foo(i16 zeroext  %a)   {
         %tmp2 = lshr i16 %a, 10         ; <i16> [#uses=1]
         %tmp23 = trunc i16 %tmp2 to i8          ; <i8> [#uses=1]