1; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py 2; RUN: llc < %s -mtriple=i686-- -mattr=+sse | FileCheck %s --check-prefix=X86-SSE 3; RUN: llc < %s -mtriple=i686-- -mattr=+avx | FileCheck %s --check-prefix=X86-SSE 4; RUN: llc < %s -mtriple=i686-- -mattr=+sse,+prfchw | FileCheck %s -check-prefix=X86-PRFCHWSSE 5; RUN: llc < %s -mtriple=i686-- -mattr=+prfchw | FileCheck %s -check-prefix=X86-PRFCHWSSE 6; RUN: llc < %s -mtriple=i686-- -mcpu=slm | FileCheck %s -check-prefix=X86-PRFCHWSSE 7; RUN: llc < %s -mtriple=i686-- -mcpu=btver2 | FileCheck %s -check-prefix=X86-PRFCHWSSE 8; RUN: llc < %s -mtriple=i686-- -mcpu=btver2 -mattr=-prfchw | FileCheck %s -check-prefix=X86-SSE 9; RUN: llc < %s -mtriple=i686-- -mattr=+prfchw | FileCheck %s -check-prefix=X86-PRFCHWSSE 10 11; Rules: 12; sse provides prefetch0/1/2/nta 13; supporting prefetchw implicitly provides prefetcht0/1/2/nta as well, as we need something to fall back to for the non-write hint. 14 15define void @t(ptr %ptr) nounwind { 16; X86-SSE-LABEL: t: 17; X86-SSE: # %bb.0: # %entry 18; X86-SSE-NEXT: movl {{[0-9]+}}(%esp), %eax 19; X86-SSE-NEXT: prefetcht2 (%eax) 20; X86-SSE-NEXT: prefetcht1 (%eax) 21; X86-SSE-NEXT: prefetcht0 (%eax) 22; X86-SSE-NEXT: prefetchnta (%eax) 23; X86-SSE-NEXT: prefetcht2 (%eax) 24; X86-SSE-NEXT: prefetcht1 (%eax) 25; X86-SSE-NEXT: prefetcht0 (%eax) 26; X86-SSE-NEXT: prefetchnta (%eax) 27; X86-SSE-NEXT: retl 28; 29; X86-PRFCHWSSE-LABEL: t: 30; X86-PRFCHWSSE: # %bb.0: # %entry 31; X86-PRFCHWSSE-NEXT: movl {{[0-9]+}}(%esp), %eax 32; X86-PRFCHWSSE-NEXT: prefetcht2 (%eax) 33; X86-PRFCHWSSE-NEXT: prefetcht1 (%eax) 34; X86-PRFCHWSSE-NEXT: prefetcht0 (%eax) 35; X86-PRFCHWSSE-NEXT: prefetchnta (%eax) 36; X86-PRFCHWSSE-NEXT: prefetchw (%eax) 37; X86-PRFCHWSSE-NEXT: prefetchw (%eax) 38; X86-PRFCHWSSE-NEXT: prefetchw (%eax) 39; X86-PRFCHWSSE-NEXT: prefetchw (%eax) 40; X86-PRFCHWSSE-NEXT: retl 41 42entry: 43 tail call void @llvm.prefetch( ptr %ptr, i32 0, i32 1, i32 1 ) 44 tail call void @llvm.prefetch( ptr %ptr, i32 0, i32 2, i32 1 ) 45 tail call void @llvm.prefetch( ptr %ptr, i32 0, i32 3, i32 1 ) 46 tail call void @llvm.prefetch( ptr %ptr, i32 0, i32 0, i32 1 ) 47 tail call void @llvm.prefetch( ptr %ptr, i32 1, i32 1, i32 1 ) 48 tail call void @llvm.prefetch( ptr %ptr, i32 1, i32 2, i32 1 ) 49 tail call void @llvm.prefetch( ptr %ptr, i32 1, i32 3, i32 1 ) 50 tail call void @llvm.prefetch( ptr %ptr, i32 1, i32 0, i32 1 ) 51 ret void 52} 53 54declare void @llvm.prefetch(ptr, i32, i32, i32) nounwind 55