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
diff --git a/llvm/test/CodeGen/PowerPC/2005-10-08-ArithmeticRotate.ll b/llvm/test/CodeGen/PowerPC/2005-10-08-ArithmeticRotate.ll
index b5c1f5c..43279e5 100644
--- a/llvm/test/CodeGen/PowerPC/2005-10-08-ArithmeticRotate.ll
+++ b/llvm/test/CodeGen/PowerPC/2005-10-08-ArithmeticRotate.ll
@@ -1,7 +1,7 @@
; This was erroneously being turned into an rlwinm instruction.
; The sign bit does matter in this case.
-; RUN: llc -verify-machineinstrs < %s -march=ppc32 | grep srawi
+; RUN: llc -verify-machineinstrs < %s -mtriple=ppc32-- | grep srawi
define i32 @test(i32 %X) {
%Y = and i32 %X, -2 ; <i32> [#uses=1]