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llvm-6502/test/CodeGen/Mips/msa/llvm-stress-s997348632.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
; v2f64 on MSA.
; It should at least successfully build.
define void @autogen_SD997348632(i8*, i32*, i64*, i32, i64, i8) {
BB:
%A4 = alloca <2 x i32>
%A3 = alloca <16 x i16>
%A2 = alloca <4 x i1>
%A1 = alloca <4 x i16>
%A = alloca <2 x i32>
%L = load i8* %0
store i8 %L, i8* %0
%E = extractelement <4 x i32> zeroinitializer, i32 0
%Shuff = shufflevector <4 x i64> zeroinitializer, <4 x i64> zeroinitializer, <4 x i32> <i32 undef, i32 1, i32 3, i32 5>
%I = insertelement <2 x i1> zeroinitializer, i1 false, i32 1
%FC = sitofp <4 x i32> zeroinitializer to <4 x double>
%Sl = select i1 false, <4 x i64> %Shuff, <4 x i64> %Shuff
%L5 = load i8* %0
store i8 %5, i8* %0
%E6 = extractelement <1 x i16> zeroinitializer, i32 0
%Shuff7 = shufflevector <2 x i1> %I, <2 x i1> %I, <2 x i32> <i32 1, i32 undef>
%I8 = insertelement <1 x i16> zeroinitializer, i16 0, i32 0
%B = xor i32 376034, %3
%FC9 = fptoui float 0x406DB70180000000 to i64
%Sl10 = select i1 false, <8 x i32> <i32 -1, i32 -1, i32 -1, i32 -1, i32 -1, i32 -1, i32 -1, i32 -1>, <8 x i32> <i32 -1, i32 -1, i32 -1, i32 -1, i32 -1, i32 -1, i32 -1, i32 -1>
%Cmp = icmp ult <4 x i64> zeroinitializer, zeroinitializer
%L11 = load i8* %0
store i8 %L, i8* %0
%E12 = extractelement <4 x i64> zeroinitializer, i32 2
%Shuff13 = shufflevector <4 x i32> zeroinitializer, <4 x i32> zeroinitializer, <4 x i32> <i32 5, i32 7, i32 undef, i32 3>
%I14 = insertelement <8 x i32> zeroinitializer, i32 -1, i32 7
%B15 = fdiv <4 x double> %FC, %FC
%Tr = trunc i32 376034 to i16
%Sl16 = select i1 false, <8 x i32> %Sl10, <8 x i32> zeroinitializer
%Cmp17 = icmp uge i32 233658, %E
br label %CF
CF: ; preds = %CF, %CF79, %CF84, %BB
%L18 = load i8* %0
store i8 %L, i8* %0
%E19 = extractelement <4 x i64> %Sl, i32 3
%Shuff20 = shufflevector <2 x i1> %Shuff7, <2 x i1> %I, <2 x i32> <i32 2, i32 0>
%I21 = insertelement <4 x i64> zeroinitializer, i64 %FC9, i32 0
%B22 = xor <8 x i32> %I14, %I14
%Tr23 = trunc i16 0 to i8
%Sl24 = select i1 false, <8 x i32> <i32 -1, i32 -1, i32 -1, i32 -1, i32 -1, i32 -1, i32 -1, i32 -1>, <8 x i32> zeroinitializer
%Cmp25 = icmp eq i1 false, false
br i1 %Cmp25, label %CF, label %CF79
CF79: ; preds = %CF
%L26 = load i8* %0
store i8 %L26, i8* %0
%E27 = extractelement <1 x i16> zeroinitializer, i32 0
%Shuff28 = shufflevector <16 x i32> <i32 -1, i32 -1, i32 -1, i32 -1, i32 -1, i32 -1, i32 -1, i32 -1, i32 -1, i32 -1, i32 -1, i32 -1, i32 -1, i32 -1, i32 -1, i32 -1>, <16 x i32> <i32 -1, i32 -1, i32 -1, i32 -1, i32 -1, i32 -1, i32 -1, i32 -1, i32 -1, i32 -1, i32 -1, i32 -1, i32 -1, i32 -1, i32 -1, i32 -1>, <16 x i32> <i32 13, i32 15, i32 17, i32 19, i32 21, i32 23, i32 25, i32 27, i32 29, i32 31, i32 1, i32 3, i32 5, i32 7, i32 9, i32 11>
%I29 = insertelement <16 x i32> %Shuff28, i32 %B, i32 15
%B30 = fdiv float 0.000000e+00, -6.749110e+06
%Sl31 = select i1 false, i32 %3, i32 %3
%Cmp32 = fcmp uno float 0.000000e+00, 0x406DB70180000000
br i1 %Cmp32, label %CF, label %CF78
CF78: ; preds = %CF78, %CF79
%L33 = load i8* %0
store i8 %L, i8* %0
%E34 = extractelement <16 x i32> %Shuff28, i32 1
%Shuff35 = shufflevector <4 x i64> zeroinitializer, <4 x i64> %I21, <4 x i32> <i32 undef, i32 6, i32 0, i32 2>
%I36 = insertelement <4 x double> %FC, double 0xA4A57F449CA36CC2, i32 2
%Se = sext <4 x i1> %Cmp to <4 x i32>
%Sl37 = select i1 %Cmp17, i32 0, i32 0
%Cmp38 = icmp ne i32 440284, 376034
br i1 %Cmp38, label %CF78, label %CF80
CF80: ; preds = %CF80, %CF82, %CF78
%L39 = load i8* %0
store i8 %L, i8* %0
%E40 = extractelement <2 x i1> %Shuff20, i32 1
br i1 %E40, label %CF80, label %CF82
CF82: ; preds = %CF80
%Shuff41 = shufflevector <2 x i1> zeroinitializer, <2 x i1> %Shuff20, <2 x i32> <i32 2, i32 0>
%I42 = insertelement <2 x i1> %Shuff41, i1 false, i32 0
%B43 = sub i32 %E, 0
%Sl44 = select i1 %Cmp32, <16 x i32> %Shuff28, <16 x i32> %Shuff28
%Cmp45 = icmp sgt <4 x i64> zeroinitializer, %I21
%L46 = load i8* %0
store i8 %L11, i8* %0
%E47 = extractelement <8 x i32> %Sl16, i32 4
%Shuff48 = shufflevector <2 x i1> zeroinitializer, <2 x i1> %Shuff7, <2 x i32> <i32 undef, i32 1>
%I49 = insertelement <2 x i1> %Shuff48, i1 %Cmp17, i32 1
%B50 = and <8 x i32> %I14, %Sl10
%FC51 = fptoui float -6.749110e+06 to i1
br i1 %FC51, label %CF80, label %CF81
CF81: ; preds = %CF81, %CF82
%Sl52 = select i1 false, float -6.749110e+06, float 0x406DB70180000000
%Cmp53 = icmp uge <2 x i32> <i32 -1, i32 -1>, <i32 -1, i32 -1>
%L54 = load i8* %0
store i8 %L5, i8* %0
%E55 = extractelement <8 x i32> zeroinitializer, i32 7
%Shuff56 = shufflevector <4 x i64> zeroinitializer, <4 x i64> zeroinitializer, <4 x i32> <i32 undef, i32 4, i32 6, i32 0>
%I57 = insertelement <2 x i1> %Shuff7, i1 false, i32 0
%B58 = fmul <4 x double> %FC, %FC
%FC59 = fptoui <4 x double> %I36 to <4 x i16>
%Sl60 = select i1 %Cmp17, <2 x i1> %I, <2 x i1> %I57
%Cmp61 = icmp ule <8 x i32> %B50, <i32 -1, i32 -1, i32 -1, i32 -1, i32 -1, i32 -1, i32 -1, i32 -1>
%L62 = load i8* %0
store i8 %L33, i8* %0
%E63 = extractelement <4 x i64> %Shuff, i32 2
%Shuff64 = shufflevector <4 x i64> %Shuff56, <4 x i64> %Shuff56, <4 x i32> <i32 5, i32 7, i32 1, i32 undef>
%I65 = insertelement <2 x i1> zeroinitializer, i1 false, i32 1
%B66 = sdiv i32 %B, %E55
%Tr67 = trunc i8 %L54 to i1
br i1 %Tr67, label %CF81, label %CF83
CF83: ; preds = %CF83, %CF81
%Sl68 = select i1 %Cmp17, i1 %Cmp25, i1 %Tr67
br i1 %Sl68, label %CF83, label %CF84
CF84: ; preds = %CF83
%Cmp69 = icmp uge i32 %E, %E34
br i1 %Cmp69, label %CF, label %CF77
CF77: ; preds = %CF84
%L70 = load i8* %0
store i8 %L, i8* %0
%E71 = extractelement <4 x i64> %Shuff, i32 0
%Shuff72 = shufflevector <2 x i1> zeroinitializer, <2 x i1> %I, <2 x i32> <i32 3, i32 1>
%I73 = insertelement <8 x i32> <i32 -1, i32 -1, i32 -1, i32 -1, i32 -1, i32 -1, i32 -1, i32 -1>, i32 %B66, i32 1
%FC74 = uitofp i1 %Cmp32 to double
%Sl75 = select i1 %FC51, i16 9704, i16 0
%Cmp76 = icmp ugt <1 x i16> %I8, %I8
store i8 %L39, i8* %0
store i8 %5, i8* %0
store i8 %Tr23, i8* %0
store i8 %L, i8* %0
store i8 %5, i8* %0
ret void
}
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