derek.holloway
7502bf64a4
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52 lines
3.0 KiB
LLVM
52 lines
3.0 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 5
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; RUN: opt -S -passes=gvn %s | FileCheck %s
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; NOTE: A test to confirm GVN doesn't introduce phis for token like types.
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; NOTE: This implies the CHECKS should exactly match the IR.
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%"$Globals" = type { i32 }
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@CBV = external constant %"$Globals"
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@Out.str = private unnamed_addr constant [4 x i8] c"Out\00", align 1
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define i32 @CSMain() local_unnamed_addr {
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; CHECK-LABEL: define i32 @CSMain() local_unnamed_addr {
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; CHECK-NEXT: [[ENTRY:.*:]]
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; CHECK-NEXT: [[LOADGLOBAL:%.*]] = load i32, ptr @CBV, align 4
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; CHECK-NEXT: [[CMP_I1_NOT:%.*]] = icmp eq i32 [[LOADGLOBAL]], 0
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; CHECK-NEXT: br i1 [[CMP_I1_NOT]], label %[[CSMAIN_EXIT:.*]], label %[[FOR_BODY_I_LR_PH:.*]]
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; CHECK: [[FOR_BODY_I_LR_PH]]:
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; CHECK-NEXT: [[BUF:%.*]] = tail call target("dx.RawBuffer", i32, 1, 0) @llvm.dx.resource.handlefrombinding.tdx.RawBuffer_i32_1_0t(i32 0, i32 0, i32 4, i32 [[LOADGLOBAL]], ptr nonnull @Out.str)
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; CHECK-NEXT: br label %[[FOR_BODY_I:.*]]
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; CHECK: [[FOR_BODY_I]]:
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; CHECK-NEXT: [[LOOPPHI:%.*]] = phi i32 [ 0, %[[FOR_BODY_I_LR_PH]] ], [ [[INC_I:%.*]], %[[FOR_BODY_I]] ]
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; CHECK-NEXT: [[UPDATECNT:%.*]] = tail call noundef i32 @llvm.dx.resource.updatecounter.tdx.RawBuffer_i32_1_0t(target("dx.RawBuffer", i32, 1, 0) [[BUF]], i8 1)
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; CHECK-NEXT: [[INC_I]] = add nuw nsw i32 [[LOOPPHI]], 1
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; CHECK-NEXT: [[EXITCOND:%.*]] = icmp ne i32 [[INC_I]], [[LOADGLOBAL]]
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; CHECK-NEXT: br i1 [[EXITCOND]], label %[[FOR_BODY_I]], label %[[CSMAIN_EXIT]]
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; CHECK: [[CSMAIN_EXIT]]:
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; CHECK-NEXT: [[BUFEXIT:%.*]] = tail call target("dx.RawBuffer", i32, 1, 0) @llvm.dx.resource.handlefrombinding.tdx.RawBuffer_i32_1_0t(i32 0, i32 0, i32 4, i32 [[LOADGLOBAL]], ptr nonnull @Out.str)
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; CHECK-NEXT: [[UPDATECNTEXIT:%.*]] = tail call noundef i32 @llvm.dx.resource.updatecounter.tdx.RawBuffer_i32_1_0t(target("dx.RawBuffer", i32, 1, 0) [[BUFEXIT]], i8 1)
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; CHECK-NEXT: ret i32 [[UPDATECNTEXIT]]
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;
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entry:
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%loadGlobal = load i32, ptr @CBV, align 4
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%cmp.i1.not = icmp eq i32 %loadGlobal, 0
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br i1 %cmp.i1.not, label %CSMain.exit, label %for.body.i.lr.ph
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for.body.i.lr.ph:
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%buf = tail call target("dx.RawBuffer", i32, 1, 0) @llvm.dx.resource.handlefrombinding(i32 0, i32 0, i32 4, i32 %loadGlobal, ptr nonnull @Out.str)
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br label %for.body.i
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for.body.i:
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%loopPhi = phi i32 [ 0, %for.body.i.lr.ph ], [ %inc.i, %for.body.i ]
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%updateCnt = tail call noundef i32 @llvm.dx.resource.updatecounter(target("dx.RawBuffer", i32, 1, 0) %buf, i8 1)
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%inc.i = add nuw nsw i32 %loopPhi, 1
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%exitcond = icmp ne i32 %inc.i, %loadGlobal
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br i1 %exitcond, label %for.body.i, label %CSMain.exit
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CSMain.exit:
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%bufExit = tail call target("dx.RawBuffer", i32, 1, 0) @llvm.dx.resource.handlefrombinding(i32 0, i32 0, i32 4, i32 %loadGlobal, ptr nonnull @Out.str)
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%updateCntExit = tail call noundef i32 @llvm.dx.resource.updatecounter(target("dx.RawBuffer", i32, 1, 0) %bufExit, i8 1)
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ret i32 %updateCntExit
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}
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