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; RUN: llc -o - -mtriple=x86_64-linux-gnu %s | FileCheck %s
target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
target triple = "x86_64-unknown-linux-gnu"
; We should be able to bypass the load values to their corresponding
; stores here.
; CHECK-LABEL: foo
; CHECK-DAG: movl %esi, -8(%rsp)
; CHECK-DAG: movl %ecx, -16(%rsp)
; CHECK-DAG: movl %edi, -4(%rsp)
; CHECK-DAG: movl %edx, -12(%rsp)
; CHECK: leal
; CHECK: addl
; CHECK: addl
; CHECK: retq
define i32 @foo(i32 %a, i32 %b, i32 %c, i32 %d) {
entry:
%a0 = alloca i32
%a1 = alloca i32
%a2 = alloca i32
%a3 = alloca i32
store i32 %b, i32* %a1
store i32 %d, i32* %a3
store i32 %a, i32* %a0
store i32 %c, i32* %a2
%l0 = load i32, i32* %a0
%l1 = load i32, i32* %a1
%l2 = load i32, i32* %a2
%l3 = load i32, i32* %a3
%add0 = add nsw i32 %l0, %l1
%add1 = add nsw i32 %add0, %l2
%add2 = add nsw i32 %add1, %l3
ret i32 %add2
}
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