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llvm-mirror/test/CodeGen/Mips/msa/i5_ld_st.ll
Daniel Sanders 4d431047f3 [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
2013-11-15 11:04:16 +00:00

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; Test the MSA intrinsics that are encoded with the I5 instruction format and
; are loads or stores.
; RUN: llc -march=mips -mattr=+msa,+fp64 < %s | FileCheck %s
; RUN: llc -march=mipsel -mattr=+msa,+fp64 < %s | FileCheck %s
@llvm_mips_ld_b_ARG = global <16 x i8> <i8 0, i8 1, i8 2, i8 3, i8 4, i8 5, i8 6, i8 7, i8 8, i8 9, i8 10, i8 11, i8 12, i8 13, i8 14, i8 15>, align 16
@llvm_mips_ld_b_RES = global <16 x i8> <i8 0, i8 0, i8 0, i8 0, i8 0, i8 0, i8 0, i8 0, i8 0, i8 0, i8 0, i8 0, i8 0, i8 0, i8 0, i8 0>, align 16
define void @llvm_mips_ld_b_test() nounwind {
entry:
%0 = bitcast <16 x i8>* @llvm_mips_ld_b_ARG to i8*
%1 = tail call <16 x i8> @llvm.mips.ld.b(i8* %0, i32 16)
store <16 x i8> %1, <16 x i8>* @llvm_mips_ld_b_RES
ret void
}
declare <16 x i8> @llvm.mips.ld.b(i8*, i32) nounwind
; CHECK: llvm_mips_ld_b_test:
; CHECK: ld.b [[R1:\$w[0-9]+]], 16(
; CHECK: st.b
; CHECK: .size llvm_mips_ld_b_test
;
@llvm_mips_ld_h_ARG = global <8 x i16> <i16 0, i16 1, i16 2, i16 3, i16 4, i16 5, i16 6, i16 7>, align 16
@llvm_mips_ld_h_RES = global <8 x i16> <i16 0, i16 0, i16 0, i16 0, i16 0, i16 0, i16 0, i16 0>, align 16
define void @llvm_mips_ld_h_test() nounwind {
entry:
%0 = bitcast <8 x i16>* @llvm_mips_ld_h_ARG to i8*
%1 = tail call <8 x i16> @llvm.mips.ld.h(i8* %0, i32 16)
store <8 x i16> %1, <8 x i16>* @llvm_mips_ld_h_RES
ret void
}
declare <8 x i16> @llvm.mips.ld.h(i8*, i32) nounwind
; CHECK: llvm_mips_ld_h_test:
; CHECK: ld.h [[R1:\$w[0-9]+]], 16(
; CHECK: st.h
; CHECK: .size llvm_mips_ld_h_test
;
@llvm_mips_ld_w_ARG = global <4 x i32> <i32 0, i32 1, i32 2, i32 3>, align 16
@llvm_mips_ld_w_RES = global <4 x i32> <i32 0, i32 0, i32 0, i32 0>, align 16
define void @llvm_mips_ld_w_test() nounwind {
entry:
%0 = bitcast <4 x i32>* @llvm_mips_ld_w_ARG to i8*
%1 = tail call <4 x i32> @llvm.mips.ld.w(i8* %0, i32 16)
store <4 x i32> %1, <4 x i32>* @llvm_mips_ld_w_RES
ret void
}
declare <4 x i32> @llvm.mips.ld.w(i8*, i32) nounwind
; CHECK: llvm_mips_ld_w_test:
; CHECK: ld.w [[R1:\$w[0-9]+]], 16(
; CHECK: st.w
; CHECK: .size llvm_mips_ld_w_test
;
@llvm_mips_ld_d_ARG = global <2 x i64> <i64 0, i64 1>, align 16
@llvm_mips_ld_d_RES = global <2 x i64> <i64 0, i64 0>, align 16
define void @llvm_mips_ld_d_test() nounwind {
entry:
%0 = bitcast <2 x i64>* @llvm_mips_ld_d_ARG to i8*
%1 = tail call <2 x i64> @llvm.mips.ld.d(i8* %0, i32 16)
store <2 x i64> %1, <2 x i64>* @llvm_mips_ld_d_RES
ret void
}
declare <2 x i64> @llvm.mips.ld.d(i8*, i32) nounwind
; CHECK: llvm_mips_ld_d_test:
; CHECK: ld.d [[R1:\$w[0-9]+]], 16(
; CHECK: st.d
; CHECK: .size llvm_mips_ld_d_test
;
@llvm_mips_st_b_ARG = global <16 x i8> <i8 0, i8 1, i8 2, i8 3, i8 4, i8 5, i8 6, i8 7, i8 8, i8 9, i8 10, i8 11, i8 12, i8 13, i8 14, i8 15>, align 16
@llvm_mips_st_b_RES = global <16 x i8> <i8 0, i8 0, i8 0, i8 0, i8 0, i8 0, i8 0, i8 0, i8 0, i8 0, i8 0, i8 0, i8 0, i8 0, i8 0, i8 0>, align 16
define void @llvm_mips_st_b_test() nounwind {
entry:
%0 = load <16 x i8>* @llvm_mips_st_b_ARG
%1 = bitcast <16 x i8>* @llvm_mips_st_b_RES to i8*
tail call void @llvm.mips.st.b(<16 x i8> %0, i8* %1, i32 16)
ret void
}
declare void @llvm.mips.st.b(<16 x i8>, i8*, i32) nounwind
; CHECK: llvm_mips_st_b_test:
; CHECK: ld.b
; CHECK: st.b [[R1:\$w[0-9]+]], 16(
; CHECK: .size llvm_mips_st_b_test
;
@llvm_mips_st_h_ARG = global <8 x i16> <i16 0, i16 1, i16 2, i16 3, i16 4, i16 5, i16 6, i16 7>, align 16
@llvm_mips_st_h_RES = global <8 x i16> <i16 0, i16 0, i16 0, i16 0, i16 0, i16 0, i16 0, i16 0>, align 16
define void @llvm_mips_st_h_test() nounwind {
entry:
%0 = load <8 x i16>* @llvm_mips_st_h_ARG
%1 = bitcast <8 x i16>* @llvm_mips_st_h_RES to i8*
tail call void @llvm.mips.st.h(<8 x i16> %0, i8* %1, i32 16)
ret void
}
declare void @llvm.mips.st.h(<8 x i16>, i8*, i32) nounwind
; CHECK: llvm_mips_st_h_test:
; CHECK: ld.h
; CHECK: st.h [[R1:\$w[0-9]+]], 16(
; CHECK: .size llvm_mips_st_h_test
;
@llvm_mips_st_w_ARG = global <4 x i32> <i32 0, i32 1, i32 2, i32 3>, align 16
@llvm_mips_st_w_RES = global <4 x i32> <i32 0, i32 0, i32 0, i32 0>, align 16
define void @llvm_mips_st_w_test() nounwind {
entry:
%0 = load <4 x i32>* @llvm_mips_st_w_ARG
%1 = bitcast <4 x i32>* @llvm_mips_st_w_RES to i8*
tail call void @llvm.mips.st.w(<4 x i32> %0, i8* %1, i32 16)
ret void
}
declare void @llvm.mips.st.w(<4 x i32>, i8*, i32) nounwind
; CHECK: llvm_mips_st_w_test:
; CHECK: ld.w
; CHECK: st.w [[R1:\$w[0-9]+]], 16(
; CHECK: .size llvm_mips_st_w_test
;
@llvm_mips_st_d_ARG = global <2 x i64> <i64 0, i64 1>, align 16
@llvm_mips_st_d_RES = global <2 x i64> <i64 0, i64 0>, align 16
define void @llvm_mips_st_d_test() nounwind {
entry:
%0 = load <2 x i64>* @llvm_mips_st_d_ARG
%1 = bitcast <2 x i64>* @llvm_mips_st_d_RES to i8*
tail call void @llvm.mips.st.d(<2 x i64> %0, i8* %1, i32 16)
ret void
}
declare void @llvm.mips.st.d(<2 x i64>, i8*, i32) nounwind
; CHECK: llvm_mips_st_d_test:
; CHECK: ld.d
; CHECK: st.d [[R1:\$w[0-9]+]], 16(
; CHECK: .size llvm_mips_st_d_test
;
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