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095b2fb29c
descriptions now tag add instructions, and the Hexagon backend is using this to identify loop induction statements. Patch by Sam Parker and Sjoerd Meijer. Differential Revision: https://reviews.llvm.org/D23601 llvm-svn: 281304
24 lines
847 B
LLVM
24 lines
847 B
LLVM
; RUN: llc -march=hexagon < %s | FileCheck %s
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; CHECK: r{{[0-9]+}} = add(r{{[0-9]+}}.{{L|l}}, r{{[0-9]+}}.{{H|h}})
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target datalayout = "e-p:32:32:32-i64:64:64-i32:32:32-i16:16:16-i1:32:32-f64:64:64-f32:32:32-v64:64:64-v32:32:32-a0:0-n16:32"
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target triple = "hexagon-unknown-none"
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define i32 @foo(i16 %a, i32 %b) #0 {
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%and = and i16 %a, -4
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%conv3 = sext i16 %and to i32
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%add13 = mul i32 %b, 65536
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%sext = add i32 %add13, 262144
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%phitmp = ashr exact i32 %sext, 16
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ret i32 %phitmp
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}
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attributes #0 = { nounwind readonly "less-precise-fpmad"="false" "no-frame-pointer-elim"="false" "no-frame-pointer-elim-non-leaf"="true" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "unsafe-fp-math"="false" "use-soft-float"="false" }
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!0 = !{!"short", !1}
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!1 = !{!"omnipotent char", !2}
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!2 = !{!"Simple C/C++ TBAA"}
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!3 = !{!"any pointer", !1}
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