derek.holloway
7502bf64a4
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29 lines
1.2 KiB
LLVM
29 lines
1.2 KiB
LLVM
; RUN: llc -mtriple=hexagon -mcpu=hexagonv73 -mattr=+hvxv73,+hvx-length128b \
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; RUN: < %s | FileCheck %s
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;
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; Check that extracting a small predicate subvector (<8 x i1) from an HVX
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; predicate compiles correctly. The bug was in extractHvxSubvectorPred where
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; the loop generating the shuffle mask used HwLen/ResLen instead of HwLen/8,
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; producing a mask of wrong size for ResLen < 8.
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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-unknown-linux-musl"
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; CHECK-LABEL: test_extract_v4i1:
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; CHECK-DAG: vand(v{{[0-9]+}},r{{[0-9]+}})
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; CHECK-DAG: vdelta(v{{[0-9]+}},v{{[0-9]+}})
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; CHECK: dealloc_return
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define <4 x i1> @test_extract_v4i1(<128 x i1> %pred) {
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%r = shufflevector <128 x i1> %pred, <128 x i1> poison, <4 x i32> <i32 0, i32 1, i32 2, i32 3>
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ret <4 x i1> %r
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}
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; CHECK-LABEL: test_extract_v2i1:
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; CHECK-DAG: vand(v{{[0-9]+}},r{{[0-9]+}})
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; CHECK-DAG: vdelta(v{{[0-9]+}},v{{[0-9]+}})
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; CHECK: dealloc_return
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define <2 x i1> @test_extract_v2i1(<128 x i1> %pred) {
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%r = shufflevector <128 x i1> %pred, <128 x i1> poison, <2 x i32> <i32 0, i32 1>
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ret <2 x i1> %r
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}
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