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[LoopVectorize] add test that asserted after cost model change (PR43582); NFC
llvm-svn: 373913
This commit is contained in:
Sanjay Patel
parent
0a43648281
commit
be92ff4065
127
test/Transforms/LoopVectorize/X86/cost-model-assert.ll
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127
test/Transforms/LoopVectorize/X86/cost-model-assert.ll
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@ -0,0 +1,127 @@
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; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt < %s -loop-vectorize -S | FileCheck %s
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; This is a bugpoint reduction of a test from PR43582:
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; https://bugs.llvm.org/show_bug.cgi?id=43582
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; ...but it's over-simplifying the underlying question:
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; TODO: Should this be vectorized rather than allowing the backend to load combine?
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; The original code is a bswap pattern.
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target datalayout = "e-m:w-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
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target triple = "x86_64-w64-windows-gnu"
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define void @cff_index_load_offsets(i1 %cond, i8 %x, i8* %p) #0 {
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; CHECK-LABEL: @cff_index_load_offsets(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: br i1 [[COND:%.*]], label [[IF_THEN:%.*]], label [[EXIT:%.*]]
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; CHECK: if.then:
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; CHECK-NEXT: br i1 true, label [[SCALAR_PH:%.*]], label [[VECTOR_PH:%.*]]
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; CHECK: vector.ph:
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; CHECK-NEXT: [[BROADCAST_SPLATINSERT:%.*]] = insertelement <4 x i8> undef, i8 [[X:%.*]], i32 0
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; CHECK-NEXT: [[BROADCAST_SPLAT:%.*]] = shufflevector <4 x i8> [[BROADCAST_SPLATINSERT]], <4 x i8> undef, <4 x i32> zeroinitializer
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; CHECK-NEXT: br label [[VECTOR_BODY:%.*]]
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; CHECK: vector.body:
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; CHECK-NEXT: [[INDEX:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ]
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; CHECK-NEXT: [[TMP0:%.*]] = add i64 [[INDEX]], 0
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; CHECK-NEXT: [[TMP1:%.*]] = mul i64 [[TMP0]], 4
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; CHECK-NEXT: [[NEXT_GEP:%.*]] = getelementptr i8, i8* null, i64 [[TMP1]]
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; CHECK-NEXT: [[TMP2:%.*]] = zext <4 x i8> [[BROADCAST_SPLAT]] to <4 x i32>
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; CHECK-NEXT: [[TMP3:%.*]] = shl nuw <4 x i32> [[TMP2]], <i32 24, i32 24, i32 24, i32 24>
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; CHECK-NEXT: [[TMP4:%.*]] = load i8, i8* [[P:%.*]], align 1, !tbaa !1
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; CHECK-NEXT: [[TMP5:%.*]] = load i8, i8* [[P]], align 1, !tbaa !1
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; CHECK-NEXT: [[TMP6:%.*]] = load i8, i8* [[P]], align 1, !tbaa !1
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; CHECK-NEXT: [[TMP7:%.*]] = load i8, i8* [[P]], align 1, !tbaa !1
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; CHECK-NEXT: [[TMP8:%.*]] = insertelement <4 x i8> undef, i8 [[TMP4]], i32 0
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; CHECK-NEXT: [[TMP9:%.*]] = insertelement <4 x i8> [[TMP8]], i8 [[TMP5]], i32 1
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; CHECK-NEXT: [[TMP10:%.*]] = insertelement <4 x i8> [[TMP9]], i8 [[TMP6]], i32 2
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; CHECK-NEXT: [[TMP11:%.*]] = insertelement <4 x i8> [[TMP10]], i8 [[TMP7]], i32 3
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; CHECK-NEXT: [[TMP12:%.*]] = zext <4 x i8> [[TMP11]] to <4 x i32>
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; CHECK-NEXT: [[TMP13:%.*]] = shl nuw nsw <4 x i32> [[TMP12]], <i32 16, i32 16, i32 16, i32 16>
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; CHECK-NEXT: [[TMP14:%.*]] = or <4 x i32> [[TMP13]], [[TMP3]]
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; CHECK-NEXT: [[TMP15:%.*]] = load i8, i8* undef, align 1, !tbaa !1
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; CHECK-NEXT: [[TMP16:%.*]] = load i8, i8* undef, align 1, !tbaa !1
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; CHECK-NEXT: [[TMP17:%.*]] = load i8, i8* undef, align 1, !tbaa !1
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; CHECK-NEXT: [[TMP18:%.*]] = load i8, i8* undef, align 1, !tbaa !1
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; CHECK-NEXT: [[TMP19:%.*]] = or <4 x i32> [[TMP14]], zeroinitializer
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; CHECK-NEXT: [[TMP20:%.*]] = or <4 x i32> [[TMP19]], zeroinitializer
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; CHECK-NEXT: [[TMP21:%.*]] = extractelement <4 x i32> [[TMP20]], i32 0
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; CHECK-NEXT: store i32 [[TMP21]], i32* undef, align 4, !tbaa !4
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; CHECK-NEXT: [[TMP22:%.*]] = extractelement <4 x i32> [[TMP20]], i32 1
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; CHECK-NEXT: store i32 [[TMP22]], i32* undef, align 4, !tbaa !4
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; CHECK-NEXT: [[TMP23:%.*]] = extractelement <4 x i32> [[TMP20]], i32 2
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; CHECK-NEXT: store i32 [[TMP23]], i32* undef, align 4, !tbaa !4
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; CHECK-NEXT: [[TMP24:%.*]] = extractelement <4 x i32> [[TMP20]], i32 3
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; CHECK-NEXT: store i32 [[TMP24]], i32* undef, align 4, !tbaa !4
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; CHECK-NEXT: [[INDEX_NEXT]] = add i64 [[INDEX]], 4
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; CHECK-NEXT: [[TMP25:%.*]] = icmp eq i64 [[INDEX_NEXT]], 0
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; CHECK-NEXT: br i1 [[TMP25]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop !6
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; CHECK: middle.block:
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; CHECK-NEXT: [[CMP_N:%.*]] = icmp eq i64 1, 0
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; CHECK-NEXT: br i1 [[CMP_N]], label [[SW_EPILOG:%.*]], label [[SCALAR_PH]]
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; CHECK: scalar.ph:
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; CHECK-NEXT: [[BC_RESUME_VAL:%.*]] = phi i8* [ null, [[MIDDLE_BLOCK]] ], [ null, [[IF_THEN]] ]
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; CHECK-NEXT: br label [[FOR_BODY68:%.*]]
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; CHECK: for.body68:
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; CHECK-NEXT: [[P_359:%.*]] = phi i8* [ [[ADD_PTR86:%.*]], [[FOR_BODY68]] ], [ [[BC_RESUME_VAL]], [[SCALAR_PH]] ]
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; CHECK-NEXT: [[CONV70:%.*]] = zext i8 [[X]] to i32
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; CHECK-NEXT: [[SHL71:%.*]] = shl nuw i32 [[CONV70]], 24
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; CHECK-NEXT: [[TMP26:%.*]] = load i8, i8* [[P]], align 1, !tbaa !1
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; CHECK-NEXT: [[CONV73:%.*]] = zext i8 [[TMP26]] to i32
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; CHECK-NEXT: [[SHL74:%.*]] = shl nuw nsw i32 [[CONV73]], 16
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; CHECK-NEXT: [[OR75:%.*]] = or i32 [[SHL74]], [[SHL71]]
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; CHECK-NEXT: [[TMP27:%.*]] = load i8, i8* undef, align 1, !tbaa !1
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; CHECK-NEXT: [[SHL78:%.*]] = shl nuw nsw i32 undef, 8
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; CHECK-NEXT: [[OR79:%.*]] = or i32 [[OR75]], [[SHL78]]
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; CHECK-NEXT: [[CONV81:%.*]] = zext i8 undef to i32
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; CHECK-NEXT: [[OR83:%.*]] = or i32 [[OR79]], [[CONV81]]
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; CHECK-NEXT: store i32 [[OR83]], i32* undef, align 4, !tbaa !4
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; CHECK-NEXT: [[ADD_PTR86]] = getelementptr inbounds i8, i8* [[P_359]], i64 4
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; CHECK-NEXT: [[CMP66:%.*]] = icmp ult i8* [[ADD_PTR86]], undef
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; CHECK-NEXT: br i1 [[CMP66]], label [[FOR_BODY68]], label [[SW_EPILOG]], !llvm.loop !8
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; CHECK: sw.epilog:
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; CHECK-NEXT: unreachable
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; CHECK: Exit:
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; CHECK-NEXT: ret void
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;
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entry:
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br i1 %cond, label %if.then, label %Exit
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if.then: ; preds = %entry
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br label %for.body68
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for.body68: ; preds = %for.body68, %if.then
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%p.359 = phi i8* [ %add.ptr86, %for.body68 ], [ null, %if.then ]
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%conv70 = zext i8 %x to i32
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%shl71 = shl nuw i32 %conv70, 24
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%0 = load i8, i8* %p, align 1, !tbaa !1
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%conv73 = zext i8 %0 to i32
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%shl74 = shl nuw nsw i32 %conv73, 16
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%or75 = or i32 %shl74, %shl71
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%1 = load i8, i8* undef, align 1, !tbaa !1
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%shl78 = shl nuw nsw i32 undef, 8
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%or79 = or i32 %or75, %shl78
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%conv81 = zext i8 undef to i32
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%or83 = or i32 %or79, %conv81
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store i32 %or83, i32* undef, align 4, !tbaa !4
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%add.ptr86 = getelementptr inbounds i8, i8* %p.359, i64 4
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%cmp66 = icmp ult i8* %add.ptr86, undef
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br i1 %cmp66, label %for.body68, label %sw.epilog
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sw.epilog: ; preds = %for.body68
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unreachable
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Exit: ; preds = %entry
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ret void
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}
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attributes #0 = { "use-soft-float"="false" }
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!llvm.ident = !{!0}
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!0 = !{!"clang version 10.0.0 (https://github.com/llvm/llvm-project.git 0fedc26a0dc0066f3968b9fea6a4e1f746c8d5a4)"}
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!1 = !{!2, !2, i64 0}
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!2 = !{!"omnipotent char", !3, i64 0}
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!3 = !{!"Simple C/C++ TBAA"}
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!4 = !{!5, !5, i64 0}
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!5 = !{!"long", !2, i64 0}
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