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; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc < %s -mtriple=i686-- -mattr=+sse | FileCheck %s --check-prefix=X86-SSE
; RUN: llc < %s -mtriple=i686-- -mattr=+avx | FileCheck %s --check-prefix=X86-SSE
; RUN: llc < %s -mtriple=i686-- -mattr=+sse,+prfchw | FileCheck %s -check-prefix=X86-PRFCHWSSE
; RUN: llc < %s -mtriple=i686-- -mattr=+prfchw | FileCheck %s -check-prefix=X86-PRFCHWSSE
; RUN: llc < %s -mtriple=i686-- -mcpu=slm | FileCheck %s -check-prefix=X86-PRFCHWSSE
; RUN: llc < %s -mtriple=i686-- -mcpu=btver2 | FileCheck %s -check-prefix=X86-PRFCHWSSE
; RUN: llc < %s -mtriple=i686-- -mcpu=btver2 -mattr=-prfchw | FileCheck %s -check-prefix=X86-SSE
; RUN: llc < %s -mtriple=i686-- -mattr=+prfchw | FileCheck %s -check-prefix=X86-PRFCHWSSE
; Rules:
; sse provides prefetch0/1/2/nta
; supporting prefetchw implicitly provides prefetcht0/1/2/nta as well, as we need something to fall back to for the non-write hint.
define void @t(ptr %ptr) nounwind {
; X86-SSE-LABEL: t:
; X86-SSE: # %bb.0: # %entry
; X86-SSE-NEXT: movl {{[0-9]+}}(%esp), %eax
; X86-SSE-NEXT: prefetcht2 (%eax)
; X86-SSE-NEXT: prefetcht1 (%eax)
; X86-SSE-NEXT: prefetcht0 (%eax)
; X86-SSE-NEXT: prefetchnta (%eax)
; X86-SSE-NEXT: prefetcht2 (%eax)
; X86-SSE-NEXT: prefetcht1 (%eax)
; X86-SSE-NEXT: prefetcht0 (%eax)
; X86-SSE-NEXT: prefetchnta (%eax)
; X86-SSE-NEXT: retl
;
; X86-PRFCHWSSE-LABEL: t:
; X86-PRFCHWSSE: # %bb.0: # %entry
; X86-PRFCHWSSE-NEXT: movl {{[0-9]+}}(%esp), %eax
; X86-PRFCHWSSE-NEXT: prefetcht2 (%eax)
; X86-PRFCHWSSE-NEXT: prefetcht1 (%eax)
; X86-PRFCHWSSE-NEXT: prefetcht0 (%eax)
; X86-PRFCHWSSE-NEXT: prefetchnta (%eax)
; X86-PRFCHWSSE-NEXT: prefetchw (%eax)
; X86-PRFCHWSSE-NEXT: prefetchw (%eax)
; X86-PRFCHWSSE-NEXT: prefetchw (%eax)
; X86-PRFCHWSSE-NEXT: prefetchw (%eax)
; X86-PRFCHWSSE-NEXT: retl
entry:
tail call void @llvm.prefetch( ptr %ptr, i32 0, i32 1, i32 1 )
tail call void @llvm.prefetch( ptr %ptr, i32 0, i32 2, i32 1 )
tail call void @llvm.prefetch( ptr %ptr, i32 0, i32 3, i32 1 )
tail call void @llvm.prefetch( ptr %ptr, i32 0, i32 0, i32 1 )
tail call void @llvm.prefetch( ptr %ptr, i32 1, i32 1, i32 1 )
tail call void @llvm.prefetch( ptr %ptr, i32 1, i32 2, i32 1 )
tail call void @llvm.prefetch( ptr %ptr, i32 1, i32 3, i32 1 )
tail call void @llvm.prefetch( ptr %ptr, i32 1, i32 0, i32 1 )
ret void
}
declare void @llvm.prefetch(ptr, i32, i32, i32) nounwind
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