[mips][msa] Build all the tests in little and big endian modes and correct an incorrect test.
Summary:
This patch (correctly) breaks some MSA tests by exposing the cases when
SelectionDAG::getConstant() produces illegal types. These have been temporarily
marked XFAIL and the XFAIL flag will be removed when
SelectionDAG::getConstant() is fixed.
There are three categories of failure:
* Immediate instructions are not selected in one endian mode.
* Immediates used in ldi.[bhwd] must be different according to endianness.
(this only affects cases where the 'wrong' ldi is used to load the correct
bitpattern. E.g. (bitcast:v2i64 (build_vector:v4i32 ...)))
* Non-immediate instructions that rely on immediates affected by the
previous two categories as part of their match pattern.
For example, the bset match pattern is the vector equivalent of
'ws | (1 << wt)'.
One test needed correcting to expect different output depending on whether big
or little endian was in use. This test was
test/CodeGen/Mips/msa/basic_operations.ll and experiences the second category
of failure shown above. The little endian version of this test is named
basic_operations_little.ll and will be merged back into basic_operations.ll in
a follow up commit now that FileCheck supports multiple check prefixes.
Reviewers: bkramer, jacksprat, dsanders
Reviewed By: dsanders
CC: llvm-commits
Differential Revision: http://llvm-reviews.chandlerc.com/D1972
llvm-svn: 194806
diff --git a/llvm/test/CodeGen/Mips/msa/arithmetic.ll b/llvm/test/CodeGen/Mips/msa/arithmetic.ll
index 512a1c1..09ee502 100644
--- a/llvm/test/CodeGen/Mips/msa/arithmetic.ll
+++ b/llvm/test/CodeGen/Mips/msa/arithmetic.ll
@@ -1,4 +1,5 @@
; RUN: llc -march=mips -mattr=+msa,+fp64 < %s | FileCheck %s
+; RUN: llc -march=mipsel -mattr=+msa,+fp64 < %s | FileCheck %s
define void @add_v16i8(<16 x i8>* %c, <16 x i8>* %a, <16 x i8>* %b) nounwind {
; CHECK: add_v16i8: