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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
32 lines
836 B
LLVM
32 lines
836 B
LLVM
; RUN: llc -march=hexagon -mcpu=hexagonv60 -mattr=+hvxv60,hvx-length64b < %s | FileCheck %s
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; CHECK-LABEL: aligned_load:
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; CHECK: = vmem({{.*}})
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; CHECK-LABEL: aligned_store:
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; CHECK: vmem({{.*}}) =
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; CHECK-LABEL: unaligned_load:
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; CHECK: = vmemu({{.*}})
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; CHECK-LABEL: unaligned_store:
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; CHECK: vmemu({{.*}}) =
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define <16 x i32> @aligned_load(<16 x i32>* %p, <16 x i32> %a) {
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%v = load <16 x i32>, <16 x i32>* %p, align 64
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ret <16 x i32> %v
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}
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define void @aligned_store(<16 x i32>* %p, <16 x i32> %a) {
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store <16 x i32> %a, <16 x i32>* %p, align 64
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ret void
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}
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define <16 x i32> @unaligned_load(<16 x i32>* %p, <16 x i32> %a) {
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%v = load <16 x i32>, <16 x i32>* %p, align 32
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ret <16 x i32> %v
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}
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define void @unaligned_store(<16 x i32>* %p, <16 x i32> %a) {
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store <16 x i32> %a, <16 x i32>* %p, align 32
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ret void
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}
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