derek.holloway
7502bf64a4
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45 lines
1.6 KiB
LLVM
45 lines
1.6 KiB
LLVM
; RUN: opt -hexagon-loop-idiom -S < %s | FileCheck %s
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; RUN: opt -p hexagon-loop-idiom -S < %s | FileCheck %s
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; Make sure that we generate correct runtime checks.
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; CHECK: b7.old:
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; CHECK: [[LEN:%[0-9]+]] = shl nuw i32 %len, 3
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; CHECK: [[SRC:%[0-9]+]] = ptrtoint ptr %src to i32
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; CHECK: [[DST:%[0-9]+]] = ptrtoint ptr %dst to i32
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; CHECK: [[ULT:%[0-9]+]] = icmp ult i32 [[DST]], [[SRC]]
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; CHECK: [[SUB:%[0-9]+]] = sub i32 [[DST]], [[SRC]]
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; CHECK: [[SLT:%[0-9]+]] = icmp sle i32 [[LEN]], [[SUB]]
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; CHECK: [[CND:%[0-9]+]] = or i1 [[ULT]], [[SLT]]
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; CHECK: br i1 [[CND]], label %b8.rtli, label %b8.rtli.ph
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target datalayout = "e-m:e-p:32:32:32-a:0-n16:32-i64:64:64-i32:32:32-i16:16:16-i1:8:8-f32:32:32-f64:64:64-v32:32:32-v64:64:64-v512:512:512-v1024:1024:1024-v2048:2048:2048"
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target triple = "hexagon"
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define void @fred(ptr %dst, ptr %src, i32 %len) #0 {
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b3:
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%v6 = icmp slt i32 0, %len
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br i1 %v6, label %b7, label %b16
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b7: ; preds = %b3
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br label %b8
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b8: ; preds = %b13, %b7
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%v9 = phi i32 [ 0, %b7 ], [ %v14, %b13 ]
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%v10 = getelementptr inbounds i64, ptr %src, i32 %v9
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%v11 = load i64, ptr %v10, align 8
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%v12 = getelementptr inbounds i64, ptr %dst, i32 %v9
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store i64 %v11, ptr %v12, align 8
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br label %b13
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b13: ; preds = %b8
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%v14 = add nsw i32 %v9, 1
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%v15 = icmp slt i32 %v14, %len
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br i1 %v15, label %b8, label %b16
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b16: ; preds = %b13, %b3
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ret void
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}
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attributes #0 = { noinline nounwind "target-cpu"="hexagonv60" }
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