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24 lines
926 B
LLVM
24 lines
926 B
LLVM
; RUN: llc -march=hexagon < %s | FileCheck %s
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; This testcase crashed, because we propagated a reg:sub into a tied use.
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; The two-address pass rewrote it in a way that generated incorrect code.
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; CHECK: r{{[0-9]+}} += lsr(r{{[0-9]+}},#16)
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target triple = "hexagon"
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define i64 @fred(i64 %x) local_unnamed_addr #0 {
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entry:
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%t.sroa.0.0.extract.trunc = trunc i64 %x to i32
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%t4.sroa.4.0.extract.shift = lshr i64 %x, 16
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%add11 = add i32 0, %t.sroa.0.0.extract.trunc
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%t14.sroa.3.0.extract.trunc = trunc i64 %t4.sroa.4.0.extract.shift to i32
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%t14.sroa.4.0.extract.shift = lshr i64 %x, 24
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%add21 = add i32 %add11, %t14.sroa.3.0.extract.trunc
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%t24.sroa.3.0.extract.trunc = trunc i64 %t14.sroa.4.0.extract.shift to i32
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%add31 = add i32 %add21, %t24.sroa.3.0.extract.trunc
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%conv32.mask = and i32 %add31, 255
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%conv33 = zext i32 %conv32.mask to i64
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ret i64 %conv33
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}
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attributes #0 = { norecurse nounwind readnone }
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