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262321d1ff
This patch lets the llvm tools handle the new HVX target features that
are added by frontend (clang). The target-features are of the form
"hvx-length64b" for 64 Byte HVX mode, "hvx-length128b" for 128 Byte mode HVX.
"hvx-double" is an alias to "hvx-length128b" and is soon will be deprecated.
The hvx version target feature is upgated form "+hvx" to "+hvxv{version_number}.
Eg: "+hvxv62"
For the correct HVX code generation, the user must use the following
target features.
For 64B mode: "+hvxv62" "+hvx-length64b"
For 128B mode: "+hvxv62" "+hvx-length128b"
Clang picks a default length if none is specified. If for some reason,
no hvx-length is specified to llvm, the compilation will bail out.
There is a corresponding clang patch.
Differential Revision: https://reviews.llvm.org/D38851
llvm-svn: 316101
31 lines
1.9 KiB
LLVM
31 lines
1.9 KiB
LLVM
; RUN: llc -march=hexagon < %s
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; REQUIRES: asserts
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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"
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define weak_odr hidden i32 @fred(i32* %this, i32* nocapture readonly dereferenceable(4) %__k) #0 align 2 {
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entry:
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%call = tail call i64 @danny(i32* %this, i32* nonnull dereferenceable(4) %__k) #2
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%__p.sroa.0.0.extract.trunc = trunc i64 %call to i32
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br i1 undef, label %for.end, label %for.body
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for.body: ; preds = %for.body, %entry
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%__p.sroa.0.018 = phi i32 [ %call8, %for.body ], [ %__p.sroa.0.0.extract.trunc, %entry ]
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%call8 = tail call i32 @sammy(i32* %this, i32 %__p.sroa.0.018) #2
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%0 = inttoptr i32 %call8 to i32*
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%lnot.i = icmp eq i32* %0, undef
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br i1 %lnot.i, label %for.end, label %for.body
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for.end: ; preds = %for.body, %entry
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ret i32 0
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}
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declare hidden i64 @danny(i32*, i32* nocapture readonly dereferenceable(4)) #1 align 2
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declare hidden i32 @sammy(i32* nocapture, i32) #0 align 2
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attributes #0 = { nounwind optsize "disable-tail-calls"="false" "less-precise-fpmad"="false" "no-frame-pointer-elim"="true" "no-frame-pointer-elim-non-leaf" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "target-cpu"="hexagonv60" "target-features"="+hvx,+hvx-length64b" "unsafe-fp-math"="false" "use-soft-float"="false" }
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attributes #1 = { nounwind optsize readonly "disable-tail-calls"="false" "less-precise-fpmad"="false" "no-frame-pointer-elim"="true" "no-frame-pointer-elim-non-leaf" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "target-cpu"="hexagonv60" "target-features"="+hvx,+hvx-length64b" "unsafe-fp-math"="false" "use-soft-float"="false" }
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attributes #2 = { optsize }
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