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/2007-05-22-tailmerge-3.ll b/llvm/test/CodeGen/PowerPC/2007-05-22-tailmerge-3.ll
index 02ace31..a3ee024 100644
--- a/llvm/test/CodeGen/PowerPC/2007-05-22-tailmerge-3.ll
+++ b/llvm/test/CodeGen/PowerPC/2007-05-22-tailmerge-3.ll
@@ -1,7 +1,7 @@
-; RUN: llc -verify-machineinstrs < %s -march=ppc32 -enable-tail-merge=0 | grep bl.*baz | count 2
-; RUN: llc -verify-machineinstrs < %s -march=ppc32 -enable-tail-merge=0 | grep bl.*quux | count 2
-; RUN: llc -verify-machineinstrs < %s -march=ppc32 | grep bl.*baz | count 1
-; RUN: llc -verify-machineinstrs < %s -march=ppc32 | grep bl.*quux | count 1
+; RUN: llc -verify-machineinstrs < %s -mtriple=ppc32-- -enable-tail-merge=0 | grep bl.*baz | count 2
+; RUN: llc -verify-machineinstrs < %s -mtriple=ppc32-- -enable-tail-merge=0 | grep bl.*quux | count 2
+; RUN: llc -verify-machineinstrs < %s -mtriple=ppc32-- | grep bl.*baz | count 1
+; RUN: llc -verify-machineinstrs < %s -mtriple=ppc32-- | grep bl.*quux | count 1
; Check that tail merging is the default on ppc, and that -enable-tail-merge works.
; ModuleID = 'tail.c'