1 ; RUN: llc < %s -mtriple=x86_64-pc-linux -mcpu=prescott | FileCheck %s --check-prefix=PRESCOTT 2 ; RUN: llc < %s -mtriple=x86_64-pc-linux -mcpu=nehalem | FileCheck %s --check-prefix=NEHALEM 3 4 ;;; TODO: (1) Some of the loads and stores are certainly unaligned and (2) the first load and first 5 ;;; store overlap with the second load and second store respectively. 6 ;;; 7 ;;; Is either of these sequences ideal? 8 9 define float @foo(i8* nocapture %buf, float %a, float %b) nounwind uwtable { 10 ; PRESCOTT-LABEL: foo: 11 ; PRESCOTT: # BB#0: # %entry 12 ; PRESCOTT-NEXT: movq .Ltmp0+14(%rip), %rax 13 ; PRESCOTT-NEXT: movq %rax, 14(%rdi) 14 ; PRESCOTT-NEXT: movq .Ltmp0+8(%rip), %rax 15 ; PRESCOTT-NEXT: movq %rax, 8(%rdi) 16 ; PRESCOTT-NEXT: movq .Ltmp0(%rip), %rax 17 ; PRESCOTT-NEXT: movq %rax, (%rdi) 18 ; 19 ; NEHALEM-LABEL: foo: 20 ; NEHALEM: # BB#0: # %entry 21 ; NEHALEM-NEXT: movq .Ltmp0+14(%rip), %rax 22 ; NEHALEM-NEXT: movq %rax, 14(%rdi) 23 ; NEHALEM-NEXT: movups .Ltmp0(%rip), %xmm2 24 ; NEHALEM-NEXT: movups %xmm2, (%rdi) 25 26 entry: 27 tail call void @llvm.memcpy.p0i8.p0i8.i64(i8* %buf, i8* blockaddress(@foo, %out), i64 22, i32 1, i1 false) 28 br label %out 29 30 out: ; preds = %entry 31 %add = fadd float %a, %b 32 ret float %add 33 } 34 35 declare void @llvm.memcpy.p0i8.p0i8.i64(i8* nocapture, i8* nocapture, i64, i32, i1) nounwind 36
