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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
41 lines
1.5 KiB
LLVM
41 lines
1.5 KiB
LLVM
; RUN: opt -relocation-model pic -march=hexagon -mcpu=hexagonv60 -O2 -S < %s | llc -march=hexagon -mcpu=hexagonv60 -relocation-model pic
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; CHECK: jumpr
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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-unknown--elf"
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; Function Attrs: nounwind
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define void @hex_h.s0.__outermost(i32 %h.stride.114) #0 {
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entry:
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br i1 undef, label %"for h.s0.y.preheader", label %call_destructor.exit, !prof !1
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call_destructor.exit: ; preds = %entry
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ret void
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"for h.s0.y.preheader": ; preds = %entry
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%tmp22.us = mul i32 undef, %h.stride.114
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br label %"for h.s0.x.x.us"
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"for h.s0.x.x.us": ; preds = %"for h.s0.x.x.us", %"for h.s0.y.preheader"
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%h.s0.x.x.us = phi i32 [ %5, %"for h.s0.x.x.us" ], [ 0, %"for h.s0.y.preheader" ]
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%0 = shl nsw i32 %h.s0.x.x.us, 5
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%1 = add i32 %0, %tmp22.us
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%2 = add nsw i32 %1, 16
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%3 = getelementptr inbounds i32, i32* null, i32 %2
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%4 = bitcast i32* %3 to <16 x i32>*
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store <16 x i32> zeroinitializer, <16 x i32>* %4, align 4, !tbaa !2
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%5 = add nuw nsw i32 %h.s0.x.x.us, 1
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br label %"for h.s0.x.x.us"
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}
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attributes #0 = { nounwind }
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!llvm.ident = !{!0, !0, !0, !0, !0, !0, !0, !0, !0, !0, !0, !0, !0, !0, !0, !0}
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!0 = !{!"Clang $LLVM_VERSION_MAJOR.$LLVM_VERSION_MINOR (based on LLVM 3.9.0)"}
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!1 = !{!"branch_weights", i32 1073741824, i32 0}
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!2 = !{!3, !3, i64 0}
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!3 = !{!"h", !4}
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!4 = !{!"Halide buffer"}
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