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llvm-6502/test/CodeGen/Mips/msa/llvm-stress-s3926023935.ll

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Fixed tryFoldToZero() for vector types that need expansion. Summary: Moved the requirement for SelectionDAG::getConstant() to return legally typed nodes slightly earlier. There were two optional DAGCombine passes that were missed out and were required to produce type-legal DAGs. Simplified a code-path in tryFoldToZero() to use SelectionDAG::getConstant(). This provides support for both promoted and expanded vector types whereas the previous code only supported promoted vector types. Fixes a "Type for zero vector elements is not legal" assertion detected by an llvm-stress generated test. Reviewers: resistor CC: llvm-commits Differential Revision: http://llvm-reviews.chandlerc.com/D2251 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@195635 91177308-0d34-0410-b5e6-96231b3b80d8
2013-11-25 11:14:43 +00:00
; 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 for MSA with a
; "Type for zero vector elements is not legal" assertion.
; It should at least successfully build.
define void @autogen_SD3926023935(i8*, i32*, i64*, i32, i64, i8) {
BB:
%A4 = alloca i1
%A3 = alloca float
%A2 = alloca double
%A1 = alloca float
%A = alloca double
%L = load i8* %0
store i8 -123, i8* %0
%E = extractelement <4 x i64> zeroinitializer, i32 1
%Shuff = shufflevector <4 x i32> <i32 -1, i32 -1, i32 -1, i32 -1>, <4 x i32> zeroinitializer, <4 x i32> <i32 0, i32 2, i32 4, i32 6>
%I = insertelement <2 x i1> zeroinitializer, i1 false, i32 0
%BC = bitcast i64 181325 to double
%Sl = select i1 false, <2 x i32> zeroinitializer, <2 x i32> zeroinitializer
%Cmp = icmp ne <4 x i64> zeroinitializer, zeroinitializer
%L5 = load i8* %0
store i8 %L, i8* %0
%E6 = extractelement <4 x i64> zeroinitializer, i32 3
%Shuff7 = shufflevector <2 x i16> zeroinitializer, <2 x i16> zeroinitializer, <2 x i32> <i32 2, i32 0>
%I8 = insertelement <8 x i64> <i64 -1, i64 -1, i64 -1, i64 -1, i64 -1, i64 -1, i64 -1, i64 -1>, i64 498254, i32 4
%B = shl i32 0, 364464
%Sl9 = select i1 false, i64 %E, i64 498254
%Cmp10 = icmp sge i8 -123, %5
br label %CF80
CF80: ; preds = %BB
%L11 = load i8* %0
store i8 -123, i8* %0
%E12 = extractelement <2 x i16> zeroinitializer, i32 1
%Shuff13 = shufflevector <4 x i64> zeroinitializer, <4 x i64> zeroinitializer, <4 x i32> <i32 0, i32 2, i32 4, i32 6>
%I14 = insertelement <4 x i32> <i32 -1, i32 -1, i32 -1, i32 -1>, i32 %B, i32 2
%B15 = sdiv i64 334618, -1
%PC = bitcast i1* %A4 to i64*
%Sl16 = select i1 %Cmp10, <4 x i32> zeroinitializer, <4 x i32> <i32 -1, i32 -1, i32 -1, i32 -1>
%Cmp17 = icmp ule <4 x i32> <i32 -1, i32 -1, i32 -1, i32 -1>, %Sl16
%L18 = load double* %A2
store i64 498254, i64* %PC
%E19 = extractelement <4 x i64> zeroinitializer, i32 0
%Shuff20 = shufflevector <2 x i1> zeroinitializer, <2 x i1> %I, <2 x i32> <i32 3, i32 1>
%I21 = insertelement <2 x i1> zeroinitializer, i1 false, i32 1
%B22 = fadd double 0.000000e+00, %BC
%ZE = zext <2 x i1> %Shuff20 to <2 x i32>
%Sl23 = select i1 %Cmp10, <2 x i1> %Shuff20, <2 x i1> zeroinitializer
%Cmp24 = icmp ult <2 x i32> zeroinitializer, zeroinitializer
%L25 = load i8* %0
store i8 %L25, i8* %0
%E26 = extractelement <4 x i8> <i8 -1, i8 -1, i8 -1, i8 -1>, i32 3
%Shuff27 = shufflevector <4 x i32> %Shuff, <4 x i32> %I14, <4 x i32> <i32 6, i32 0, i32 undef, i32 4>
%I28 = insertelement <4 x i32> zeroinitializer, i32 %3, i32 0
%B29 = lshr i8 %E26, -43
%Tr = trunc i8 %L5 to i1
br label %CF79
CF79: ; preds = %CF80
%Sl30 = select i1 false, i8 %B29, i8 -123
%Cmp31 = icmp sge <2 x i1> %I, %I
%L32 = load i64* %PC
store i8 -123, i8* %0
%E33 = extractelement <8 x i64> <i64 -1, i64 -1, i64 -1, i64 -1, i64 -1, i64 -1, i64 -1, i64 -1>, i32 2
%Shuff34 = shufflevector <4 x i64> zeroinitializer, <4 x i64> %Shuff13, <4 x i32> <i32 5, i32 7, i32 1, i32 3>
%I35 = insertelement <4 x i64> zeroinitializer, i64 498254, i32 3
%B36 = sub <8 x i64> %I8, <i64 -1, i64 -1, i64 -1, i64 -1, i64 -1, i64 -1, i64 -1, i64 -1>
%PC37 = bitcast i8* %0 to i1*
%Sl38 = select i1 %Cmp10, i8 -43, i8 %L5
%Cmp39 = icmp eq i64 498254, %B15
br label %CF
CF: ; preds = %CF, %CF79
%L40 = load double* %A
store i1 %Cmp39, i1* %PC37
%E41 = extractelement <4 x i64> zeroinitializer, i32 3
%Shuff42 = shufflevector <2 x i32> zeroinitializer, <2 x i32> %ZE, <2 x i32> <i32 2, i32 undef>
%I43 = insertelement <4 x i32> %Shuff, i32 %3, i32 0
%B44 = shl i64 %E41, -1
%Se = sext <2 x i1> %I to <2 x i32>
%Sl45 = select i1 %Cmp10, i1 false, i1 false
br i1 %Sl45, label %CF, label %CF77
CF77: ; preds = %CF77, %CF
%Cmp46 = fcmp uno double 0.000000e+00, 0.000000e+00
br i1 %Cmp46, label %CF77, label %CF78
CF78: ; preds = %CF78, %CF83, %CF82, %CF77
%L47 = load i64* %PC
store i8 -123, i8* %0
%E48 = extractelement <4 x i64> zeroinitializer, i32 3
%Shuff49 = shufflevector <4 x i32> <i32 -1, i32 -1, i32 -1, i32 -1>, <4 x i32> zeroinitializer, <4 x i32> <i32 2, i32 4, i32 6, i32 undef>
%I50 = insertelement <2 x i1> zeroinitializer, i1 %Cmp10, i32 0
%B51 = sdiv i64 %E19, 463132
%Tr52 = trunc i64 %E48 to i32
%Sl53 = select i1 %Tr, i1 %Cmp46, i1 %Cmp10
br i1 %Sl53, label %CF78, label %CF83
CF83: ; preds = %CF78
%Cmp54 = fcmp uge double %L40, %L40
br i1 %Cmp54, label %CF78, label %CF82
CF82: ; preds = %CF83
%L55 = load i64* %PC
store i64 %L32, i64* %PC
%E56 = extractelement <2 x i16> %Shuff7, i32 1
%Shuff57 = shufflevector <4 x i64> zeroinitializer, <4 x i64> zeroinitializer, <4 x i32> <i32 2, i32 4, i32 6, i32 0>
%I58 = insertelement <2 x i32> %Sl, i32 %Tr52, i32 0
%B59 = or i32 %B, %3
%FC = sitofp i64 498254 to double
%Sl60 = select i1 false, i64 %E6, i64 -1
%Cmp61 = icmp sgt <4 x i32> %Shuff27, %I43
%L62 = load i64* %PC
store i64 %Sl9, i64* %PC
%E63 = extractelement <2 x i32> %ZE, i32 0
%Shuff64 = shufflevector <4 x i64> zeroinitializer, <4 x i64> %Shuff13, <4 x i32> <i32 1, i32 3, i32 undef, i32 7>
%I65 = insertelement <4 x i32> %Shuff, i32 %3, i32 3
%B66 = sub i64 %L47, 53612
%Tr67 = trunc i64 %4 to i32
%Sl68 = select i1 %Cmp39, i1 %Cmp39, i1 false
br i1 %Sl68, label %CF78, label %CF81
CF81: ; preds = %CF82
%Cmp69 = icmp ne <8 x i64> <i64 -1, i64 -1, i64 -1, i64 -1, i64 -1, i64 -1, i64 -1, i64 -1>, %B36
%L70 = load i8* %0
store i64 %L55, i64* %PC
%E71 = extractelement <4 x i32> %Shuff49, i32 1
%Shuff72 = shufflevector <4 x i64> zeroinitializer, <4 x i64> %Shuff34, <4 x i32> <i32 0, i32 2, i32 4, i32 6>
%I73 = insertelement <4 x i64> %Shuff64, i64 %E, i32 2
%B74 = lshr <8 x i64> <i64 -1, i64 -1, i64 -1, i64 -1, i64 -1, i64 -1, i64 -1, i64 -1>, %B36
%Sl75 = select i1 %Sl68, i64 %B51, i64 %L55
%Cmp76 = icmp sgt <8 x i64> %B74, %B36
store i1 %Cmp39, i1* %PC37
store i64 %E41, i64* %PC
store i64 %L32, i64* %PC
store i64 %Sl75, i64* %2
store i64 %L32, i64* %PC
ret void
}
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