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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
76 lines
1.5 KiB
LLVM
76 lines
1.5 KiB
LLVM
; RUN: llc -march=hexagon < %s | FileCheck %s
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target triple = "hexagon"
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; CHECK-LABEL: ua
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; CHECK: extractu(r0,#26,#0)
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define i32 @ua(i32 %x) local_unnamed_addr #0 {
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entry:
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%shl = and i32 %x, 67108863
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ret i32 %shl
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}
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; CHECK-LABEL: ub
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; CHECK: extractu(r0,#16,#4)
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define i32 @ub(i32 %x) local_unnamed_addr #0 {
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entry:
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%0 = lshr i32 %x, 4
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%shr = and i32 %0, 65535
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ret i32 %shr
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}
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; CHECK-LABEL: uc
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; CHECK: extractu(r0,#24,#0)
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define i32 @uc(i32 %x) local_unnamed_addr #0 {
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entry:
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%shl = and i32 %x, 16777215
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ret i32 %shl
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}
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; CHECK-LABEL: ud
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; CHECK: extractu(r0,#16,#8)
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define i32 @ud(i32 %x) local_unnamed_addr #0 {
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entry:
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%bf.lshr = lshr i32 %x, 8
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%bf.clear = and i32 %bf.lshr, 65535
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ret i32 %bf.clear
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}
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; CHECK-LABEL: sa
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; CHECK: extract(r0,#26,#0)
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define i32 @sa(i32 %x) local_unnamed_addr #0 {
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entry:
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%shl = shl i32 %x, 6
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%shr = ashr exact i32 %shl, 6
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ret i32 %shr
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}
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; CHECK-LABEL: sb
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; CHECK: extract(r0,#16,#4)
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define i32 @sb(i32 %x) local_unnamed_addr #0 {
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entry:
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%shl = shl i32 %x, 12
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%shr = ashr i32 %shl, 16
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ret i32 %shr
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}
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; CHECK-LABEL: sc
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; CHECK: extract(r0,#24,#0)
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define i32 @sc(i32 %x) local_unnamed_addr #0 {
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entry:
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%shl = shl i32 %x, 8
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%shr = ashr exact i32 %shl, 8
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ret i32 %shr
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}
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; CHECK-LABEL: sd
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; CHECK: extract(r0,#16,#8)
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define i32 @sd(i32 %x) local_unnamed_addr #0 {
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entry:
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%bf.shl = shl i32 %x, 8
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%bf.ashr = ashr i32 %bf.shl, 16
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ret i32 %bf.ashr
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}
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attributes #0 = { noinline norecurse nounwind readnone "target-cpu"="hexagonv60" "target-features"="-hvx,-long-calls" }
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