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llvm-6502/test/CodeGen/Mips/msa/llvm-stress-s3997499501.ll
Daniel Sanders ca795b61be [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

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@194806 91177308-0d34-0410-b5e6-96231b3b80d8
2013-11-15 11:04:16 +00:00

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; RUN: llc -march=mips < %s
; RUN: llc -march=mips -mattr=+msa,+fp64 < %s
; RUN: llc -march=mipsel < %s
; RUN: llc -march=mipsel -mattr=+msa,+fp64 < %s
; This test originally failed to select instructions for extract_vector_elt for
; v4f32 on MSA.
; It should at least successfully build.
define void @autogen_SD3997499501(i8*, i32*, i64*, i32, i64, i8) {
BB:
%A4 = alloca <1 x double>
%A3 = alloca double
%A2 = alloca float
%A1 = alloca double
%A = alloca double
%L = load i8* %0
store i8 97, i8* %0
%E = extractelement <16 x i64> <i64 -1, i64 -1, i64 -1, i64 -1, i64 -1, i64 -1, i64 -1, i64 -1, i64 -1, i64 -1, i64 -1, i64 -1, i64 -1, i64 -1, i64 -1, i64 -1>, i32 14
%Shuff = shufflevector <2 x i1> zeroinitializer, <2 x i1> zeroinitializer, <2 x i32> <i32 1, i32 3>
%I = insertelement <4 x i64> zeroinitializer, i64 0, i32 3
%Tr = trunc <1 x i64> zeroinitializer to <1 x i8>
%Sl = select i1 false, double* %A1, double* %A
%Cmp = icmp ne <2 x i64> zeroinitializer, zeroinitializer
%L5 = load double* %Sl
store float -4.374162e+06, float* %A2
%E6 = extractelement <4 x i64> zeroinitializer, i32 3
%Shuff7 = shufflevector <4 x i64> zeroinitializer, <4 x i64> %I, <4 x i32> <i32 2, i32 4, i32 6, i32 undef>
%I8 = insertelement <2 x i1> %Shuff, i1 false, i32 0
%B = ashr <4 x i32> <i32 -1, i32 -1, i32 -1, i32 -1>, <i32 -1, i32 -1, i32 -1, i32 -1>
%PC = bitcast float* %A2 to float*
%Sl9 = select i1 false, i32 82299, i32 0
%Cmp10 = icmp slt i8 97, %5
br label %CF72
CF72: ; preds = %CF72, %CF80, %CF78, %BB
%L11 = load double* %Sl
store double 0.000000e+00, double* %Sl
%E12 = extractelement <2 x i1> zeroinitializer, i32 0
br i1 %E12, label %CF72, label %CF80
CF80: ; preds = %CF72
%Shuff13 = shufflevector <2 x i1> zeroinitializer, <2 x i1> zeroinitializer, <2 x i32> <i32 3, i32 1>
%I14 = insertelement <2 x i64> zeroinitializer, i64 %4, i32 1
%B15 = fadd double %L5, 0.000000e+00
%BC = bitcast i32 0 to float
%Sl16 = select i1 %E12, float 0xC7957ED940000000, float %BC
%Cmp17 = icmp eq i32 136082, 471909
br i1 %Cmp17, label %CF72, label %CF77
CF77: ; preds = %CF77, %CF80
%L18 = load double* %Sl
store double 0.000000e+00, double* %Sl
%E19 = extractelement <2 x i1> zeroinitializer, i32 0
br i1 %E19, label %CF77, label %CF78
CF78: ; preds = %CF77
%Shuff20 = shufflevector <2 x i1> zeroinitializer, <2 x i1> zeroinitializer, <2 x i32> <i32 1, i32 3>
%I21 = insertelement <8 x i1> zeroinitializer, i1 %Cmp10, i32 7
%B22 = sdiv <4 x i64> %Shuff7, zeroinitializer
%FC = uitofp i8 97 to double
%Sl23 = select i1 %Cmp10, <2 x i1> zeroinitializer, <2 x i1> zeroinitializer
%L24 = load double* %Sl
store float %Sl16, float* %PC
%E25 = extractelement <2 x i1> %Shuff, i32 1
br i1 %E25, label %CF72, label %CF76
CF76: ; preds = %CF78
%Shuff26 = shufflevector <4 x i64> zeroinitializer, <4 x i64> %B22, <4 x i32> <i32 undef, i32 undef, i32 0, i32 undef>
%I27 = insertelement <4 x i64> zeroinitializer, i64 %E, i32 2
%B28 = mul <4 x i64> %I27, zeroinitializer
%ZE = zext <8 x i1> zeroinitializer to <8 x i64>
%Sl29 = select i1 %Cmp17, float -4.374162e+06, float -4.374162e+06
%L30 = load i8* %0
store double %L5, double* %Sl
%E31 = extractelement <8 x i1> zeroinitializer, i32 5
br label %CF
CF: ; preds = %CF, %CF81, %CF76
%Shuff32 = shufflevector <16 x i64> <i64 -1, i64 -1, i64 -1, i64 -1, i64 -1, i64 -1, i64 -1, i64 -1, i64 -1, i64 -1, i64 -1, i64 -1, i64 -1, i64 -1, i64 -1, i64 -1>, <16 x i64> <i64 -1, i64 -1, i64 -1, i64 -1, i64 -1, i64 -1, i64 -1, i64 -1, i64 -1, i64 -1, i64 -1, i64 -1, i64 -1, i64 -1, i64 -1, i64 -1>, <16 x i32> <i32 8, i32 undef, i32 12, i32 14, i32 16, i32 18, i32 20, i32 22, i32 undef, i32 26, i32 28, i32 30, i32 undef, i32 2, i32 4, i32 6>
%I33 = insertelement <8 x i1> zeroinitializer, i1 false, i32 2
%BC34 = bitcast <4 x i32> <i32 -1, i32 -1, i32 -1, i32 -1> to <4 x float>
%Sl35 = select i1 %E12, <2 x i1> %I8, <2 x i1> zeroinitializer
%Cmp36 = fcmp oge double 0xC2C3BAE2D5C18360, 0xC2C3BAE2D5C18360
br i1 %Cmp36, label %CF, label %CF74
CF74: ; preds = %CF74, %CF
%L37 = load float* %PC
store double 0.000000e+00, double* %Sl
%E38 = extractelement <2 x i1> %Sl23, i32 1
br i1 %E38, label %CF74, label %CF75
CF75: ; preds = %CF75, %CF82, %CF74
%Shuff39 = shufflevector <2 x i1> %Shuff13, <2 x i1> zeroinitializer, <2 x i32> <i32 undef, i32 2>
%I40 = insertelement <4 x i64> zeroinitializer, i64 %4, i32 2
%Sl41 = select i1 %Cmp10, i32 0, i32 %3
%Cmp42 = icmp ne <1 x i64> zeroinitializer, zeroinitializer
%L43 = load double* %Sl
store i64 %4, i64* %2
%E44 = extractelement <2 x i1> %Shuff20, i32 1
br i1 %E44, label %CF75, label %CF82
CF82: ; preds = %CF75
%Shuff45 = shufflevector <2 x i1> %Sl23, <2 x i1> %Sl23, <2 x i32> <i32 2, i32 0>
%I46 = insertelement <4 x i64> zeroinitializer, i64 0, i32 0
%B47 = sub i64 %E, %E6
%Sl48 = select i1 %Cmp10, double %L5, double %L43
%Cmp49 = icmp uge i64 %4, %B47
br i1 %Cmp49, label %CF75, label %CF81
CF81: ; preds = %CF82
%L50 = load i8* %0
store double %L43, double* %Sl
%E51 = extractelement <4 x i64> %Shuff7, i32 3
%Shuff52 = shufflevector <4 x float> %BC34, <4 x float> %BC34, <4 x i32> <i32 2, i32 4, i32 6, i32 0>
%I53 = insertelement <2 x i1> %Cmp, i1 %E25, i32 0
%B54 = fdiv double %L24, %L43
%BC55 = bitcast <4 x i64> zeroinitializer to <4 x double>
%Sl56 = select i1 false, i8 %5, i8 97
%L57 = load i8* %0
store i8 %L50, i8* %0
%E58 = extractelement <2 x i1> %Shuff20, i32 1
br i1 %E58, label %CF, label %CF73
CF73: ; preds = %CF73, %CF81
%Shuff59 = shufflevector <2 x i1> %Shuff13, <2 x i1> %Shuff45, <2 x i32> <i32 undef, i32 0>
%I60 = insertelement <4 x float> %Shuff52, float -4.374162e+06, i32 0
%B61 = mul <4 x i64> %I46, zeroinitializer
%PC62 = bitcast double* %A3 to float*
%Sl63 = select i1 %Cmp10, <1 x i64> zeroinitializer, <1 x i64> zeroinitializer
%Cmp64 = icmp ne <2 x i1> %Cmp, %Shuff
%L65 = load double* %A1
store float -4.374162e+06, float* %PC62
%E66 = extractelement <8 x i1> %I21, i32 3
br i1 %E66, label %CF73, label %CF79
CF79: ; preds = %CF79, %CF73
%Shuff67 = shufflevector <8 x i1> %I21, <8 x i1> %I21, <8 x i32> <i32 6, i32 8, i32 10, i32 12, i32 14, i32 0, i32 undef, i32 4>
%I68 = insertelement <1 x i1> %Cmp42, i1 %E25, i32 0
%B69 = sdiv <16 x i64> <i64 -1, i64 -1, i64 -1, i64 -1, i64 -1, i64 -1, i64 -1, i64 -1, i64 -1, i64 -1, i64 -1, i64 -1, i64 -1, i64 -1, i64 -1, i64 -1>, <i64 -1, i64 -1, i64 -1, i64 -1, i64 -1, i64 -1, i64 -1, i64 -1, i64 -1, i64 -1, i64 -1, i64 -1, i64 -1, i64 -1, i64 -1, i64 -1>
%Sl70 = select i1 %Cmp49, <2 x i1> %Sl23, <2 x i1> %Shuff45
%Cmp71 = icmp ne i1 false, false
br i1 %Cmp71, label %CF79, label %CF83
CF83: ; preds = %CF79
store double 0.000000e+00, double* %Sl
store float %BC, float* %PC62
store double %Sl48, double* %Sl
store double %FC, double* %Sl
store float %BC, float* %PC62
ret void
}
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