-; RUN: llc < %s -mtriple=x86_64-pc-linux -mcpu=prescott | FileCheck %s
+; RUN: llc < %s -mtriple=x86_64-pc-linux -mcpu=prescott | FileCheck %s --check-prefix=PRESCOTT
+; RUN: llc < %s -mtriple=x86_64-pc-linux -mcpu=nehalem | FileCheck %s --check-prefix=NEHALEM
+
+;;; TODO: (1) Some of the loads and stores are certainly unaligned and (2) the first load and first
+;;; store overlap with the second load and second store respectively.
+;;;
+;;; Is either of these sequences ideal?
define float @foo(i8* nocapture %buf, float %a, float %b) nounwind uwtable {
+; PRESCOTT-LABEL: foo:
+; PRESCOTT: # BB#0: # %entry
+; PRESCOTT-NEXT: movq .Ltmp0+14(%rip), %rax
+; PRESCOTT-NEXT: movq %rax, 14(%rdi)
+; PRESCOTT-NEXT: movq .Ltmp0+8(%rip), %rax
+; PRESCOTT-NEXT: movq %rax, 8(%rdi)
+; PRESCOTT-NEXT: movq .Ltmp0(%rip), %rax
+; PRESCOTT-NEXT: movq %rax, (%rdi)
+;
+; NEHALEM-LABEL: foo:
+; NEHALEM: # BB#0: # %entry
+; NEHALEM-NEXT: movq .Ltmp0+14(%rip), %rax
+; NEHALEM-NEXT: movq %rax, 14(%rdi)
+; NEHALEM-NEXT: movups .Ltmp0(%rip), %xmm2
+; NEHALEM-NEXT: movups %xmm2, (%rdi)
+
entry:
tail call void @llvm.memcpy.p0i8.p0i8.i64(i8* %buf, i8* blockaddress(@foo, %out), i64 22, i32 1, i1 false)
br label %out
out: ; preds = %entry
%add = fadd float %a, %b
ret float %add
-; CHECK: foo
-; CHECK: movw .L{{.*}}+20(%rip), %{{.*}}
-; CHECK: movl .L{{.*}}+16(%rip), %{{.*}}
-; CHECK: movq .L{{.*}}+8(%rip), %{{.*}}
-; CHECK: movq .L{{.*}}(%rip), %{{.*}}
-; CHECK: ret
}
declare void @llvm.memcpy.p0i8.p0i8.i64(i8* nocapture, i8* nocapture, i64, i32, i1) nounwind