84 lines
3.7 KiB
LLVM
84 lines
3.7 KiB
LLVM
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; RUN: opt -march=hexagon -hexagon-loop-idiom -S < %s | FileCheck %s
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; CHECK-LABEL: define void @fred
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; Check that this test does not crash.
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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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%struct.0 = type { [120 x i16], [80 x i16], [80 x i16], [80 x i16], [80 x i16], [80 x i16], [40 x i16], [40 x i16], [40 x i16], [40 x i16], [40 x i16], [40 x i16] }
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define void @fred(%struct.0* %demod_state) local_unnamed_addr #0 {
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entry:
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br label %for.body309
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for.body309: ; preds = %for.body309, %entry
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%max_diff.0300 = phi i16 [ %max_diff.1, %for.body309 ], [ 0, %entry ]
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%arrayidx322.phi = phi i16* [ undef, %entry ], [ %arrayidx322.inc, %for.body309 ]
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%arrayidx331.phi = phi i16* [ undef, %entry ], [ %arrayidx331.inc, %for.body309 ]
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%lag.4299.apmt = phi i32 [ %inc376.apmt, %for.body309 ], [ 0, %entry ]
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%0 = load i16, i16* %arrayidx322.phi, align 2
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%conv323 = sext i16 %0 to i32
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%sub324 = sub nsw i32 0, %conv323
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%ispos258 = icmp sgt i32 %sub324, -1
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%1 = select i1 %ispos258, i32 %sub324, i32 0
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%add326 = add nsw i32 %1, 0
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%2 = load i16, i16* %arrayidx331.phi, align 2
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%conv332 = sext i16 %2 to i32
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%sub333 = sub nsw i32 0, %conv332
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%ispos260 = icmp sgt i32 %sub333, -1
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%3 = select i1 %ispos260, i32 %sub333, i32 undef
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%sub342 = sub nsw i32 0, %conv323
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%ispos262 = icmp sgt i32 %sub342, -1
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%4 = select i1 %ispos262, i32 %sub342, i32 undef
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%sub351 = sub nsw i32 0, %conv332
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%ispos264 = icmp sgt i32 %sub351, -1
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%5 = select i1 %ispos264, i32 %sub351, i32 0
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%sub360 = sub nsw i32 %conv323, %conv332
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%ispos266 = icmp sgt i32 %sub360, -1
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%6 = select i1 %ispos266, i32 %sub360, i32 0
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%add335 = add nsw i32 %add326, %4
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%add344 = add nsw i32 %add335, %3
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%add353 = add i32 %add344, %5
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%add362 = add i32 %add353, %6
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%div363 = sdiv i32 %add362, 6
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%conv364 = trunc i32 %div363 to i16
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%sext268 = shl i32 %div363, 16
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%conv369 = ashr exact i32 %sext268, 16
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%conv370 = sext i16 %max_diff.0300 to i32
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%cmp371 = icmp sgt i32 %conv369, %conv370
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%max_diff.1 = select i1 %cmp371, i16 %conv364, i16 %max_diff.0300
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%inc376.apmt = add nuw nsw i32 %lag.4299.apmt, 1
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%exitcond331 = icmp ne i32 %inc376.apmt, 40
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%arrayidx322.inc = getelementptr i16, i16* %arrayidx322.phi, i32 1
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%arrayidx331.inc = getelementptr i16, i16* %arrayidx331.phi, i32 1
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br i1 %exitcond331, label %for.body309, label %for.end377
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for.end377: ; preds = %for.body309
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%max_diff.1.lcssa = phi i16 [ %max_diff.1, %for.body309 ]
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%cmp407 = icmp sgt i16 %max_diff.1.lcssa, 4
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br label %for.body405
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for.body405: ; preds = %if.end437, %for.end377
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%arrayidx412 = getelementptr inbounds %struct.0, %struct.0* %demod_state, i32 0, i32 11, i32 undef
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br i1 %cmp407, label %if.then409, label %if.end437
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if.then409: ; preds = %for.body405
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%arrayidx416 = getelementptr inbounds [40 x i16], [40 x i16]* null, i32 0, i32 undef
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%7 = load i16, i16* %arrayidx416, align 2
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%conv417 = sext i16 %7 to i32
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%shl = shl i32 %conv417, 4
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%mul419 = mul nsw i32 %shl, 655
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%add420 = add nsw i32 %mul419, 0
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br label %if.end437
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if.end437: ; preds = %if.then409, %for.body405
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%mul431.sink = phi i32 [ %add420, %if.then409 ], [ undef, %for.body405 ]
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%shr432257 = lshr i32 %mul431.sink, 15
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%conv433 = trunc i32 %shr432257 to i16
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store i16 %conv433, i16* %arrayidx412, align 2
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br label %for.body405
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}
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attributes #0 = { noinline nounwind "target-cpu"="hexagonv60" "target-features"="-hvx,-long-calls" }
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