25 lines
894 B
LLVM
25 lines
894 B
LLVM
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; RUN: llc < %s -mtriple=armv7 | FileCheck %s
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;
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; Ensure that don't crash given a largeish power-of-two shufflevector index.
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%struct.desc = type { i32, [7 x i32] }
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define i32 @foo(%struct.desc* %descs, i32 %num, i32 %cw) local_unnamed_addr #0 {
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; CHECK-LABEL: foo:
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; CHECK: @ %bb.0: @ %entry
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; CHECK-NEXT: mov r1, #32
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; CHECK-NEXT: vld1.32 {d16, d17}, [r0], r1
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; CHECK-NEXT: vld1.32 {d18, d19}, [r0]
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; CHECK-NEXT: vtrn.32 q8, q9
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; CHECK-NEXT: vadd.i32 d16, d16, d16
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; CHECK-NEXT: vmov.32 r0, d16[1]
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; CHECK-NEXT: bx lr
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entry:
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%descs.vec = bitcast %struct.desc* %descs to <16 x i32>*
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%wide.vec = load <16 x i32>, <16 x i32>* %descs.vec, align 4
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%strided.vec = shufflevector <16 x i32> %wide.vec, <16 x i32> undef, <2 x i32> <i32 0, i32 8>
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%bin.rdx20 = add <2 x i32> %strided.vec, %strided.vec
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%0 = extractelement <2 x i32> %bin.rdx20, i32 1
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ret i32 %0
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}
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