84220eccb6
Instruction `preld` is used to prefetch one cache-line of data from memory in advance into the cache. This commit allows it to be generated automatically.
68 lines
1.9 KiB
LLVM
68 lines
1.9 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 5
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; RUN: llc --mtriple=loongarch32 < %s | FileCheck %s --check-prefix=LA32
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; RUN: llc --mtriple=loongarch64 < %s | FileCheck %s --check-prefix=LA64
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declare void @llvm.prefetch(ptr, i32, i32, i32)
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define void @load_prefetch_no_offset(ptr %a) {
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; LA32-LABEL: load_prefetch_no_offset:
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; LA32: # %bb.0: # %entry
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; LA32-NEXT: preld 0, $a0, 0
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; LA32-NEXT: ret
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;
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; LA64-LABEL: load_prefetch_no_offset:
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; LA64: # %bb.0: # %entry
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; LA64-NEXT: preld 0, $a0, 0
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; LA64-NEXT: ret
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entry:
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call void @llvm.prefetch(ptr %a, i32 0, i32 3, i32 1)
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ret void
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}
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define void @store_prefetch_no_offset(ptr %a) {
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; LA32-LABEL: store_prefetch_no_offset:
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; LA32: # %bb.0: # %entry
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; LA32-NEXT: preld 8, $a0, 0
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; LA32-NEXT: ret
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;
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; LA64-LABEL: store_prefetch_no_offset:
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; LA64: # %bb.0: # %entry
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; LA64-NEXT: preld 8, $a0, 0
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; LA64-NEXT: ret
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entry:
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call void @llvm.prefetch(ptr %a, i32 1, i32 3, i32 1)
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ret void
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}
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define void @load_prefetch_with_offset(ptr %a) {
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; LA32-LABEL: load_prefetch_with_offset:
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; LA32: # %bb.0: # %entry
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; LA32-NEXT: preld 0, $a0, 200
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; LA32-NEXT: ret
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;
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; LA64-LABEL: load_prefetch_with_offset:
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; LA64: # %bb.0: # %entry
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; LA64-NEXT: preld 0, $a0, 200
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; LA64-NEXT: ret
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entry:
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%addr = getelementptr i8, ptr %a, i64 200
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call void @llvm.prefetch(ptr %addr, i32 0, i32 3, i32 1)
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ret void
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}
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define void @store_prefetch_with_offset(ptr %a) {
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; LA32-LABEL: store_prefetch_with_offset:
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; LA32: # %bb.0: # %entry
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; LA32-NEXT: preld 8, $a0, 200
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; LA32-NEXT: ret
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;
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; LA64-LABEL: store_prefetch_with_offset:
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; LA64: # %bb.0: # %entry
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; LA64-NEXT: preld 8, $a0, 200
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; LA64-NEXT: ret
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entry:
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%addr = getelementptr i8, ptr %a, i64 200
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call void @llvm.prefetch(ptr %addr, i32 1, i32 3, i32 1)
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ret void
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}
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