e2cb07c322
When replacing ComplexDeinterleavingPass::ReductionOperation, we can do it either from the Real or Imaginary part. The correct way is to take whichever is later in the BasicBlock, but before the patch, we just always took the Real part. Fixes https://github.com/llvm/llvm-project/issues/65044 Differential Revision: https://reviews.llvm.org/D159209
32 lines
1.4 KiB
LLVM
32 lines
1.4 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 2
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; RUN: llc %s --mattr=+complxnum -o - | FileCheck %s
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target datalayout = "e-m:e-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128-ni:1-p2:32:8:8:32-ni:2"
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target triple = "aarch64-none-linux-gnu"
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; Check that deinterleaving pass doesn't generate broken IR
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define void @check_deinterleave_crash() #0 {
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; CHECK-LABEL: check_deinterleave_crash:
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; CHECK: // %bb.0: // %bb
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; CHECK-NEXT: mov x8, xzr
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; CHECK-NEXT: str wzr, [x8]
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bb:
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br label %bb173
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bb173: ; preds = %bb173, %bb
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%phi177 = phi <2 x i32> [ %add190, %bb173 ], [ zeroinitializer, %bb ]
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%phi178 = phi <2 x i32> [ %add187, %bb173 ], [ zeroinitializer, %bb ]
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%add185 = add <2 x i32> %phi178, <i32 1, i32 1>
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%add186 = add <2 x i32> %phi177, <i32 1, i32 1>
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%shufflevector = shufflevector <2 x i32> zeroinitializer, <2 x i32> zeroinitializer, <2 x i32> zeroinitializer
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%add187 = add <2 x i32> %add185, %shufflevector
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%shufflevector189 = shufflevector <2 x i32> zeroinitializer, <2 x i32> zeroinitializer, <2 x i32> zeroinitializer
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%add190 = add <2 x i32> %add186, %shufflevector189
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br i1 poison, label %bb193, label %bb173
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bb193: ; preds = %bb173
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%add194 = or <2 x i32> %add190, %add187
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store volatile i32 0, ptr null, align 4
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unreachable
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}
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