forked from OSchip/llvm-project
38 lines
916 B
LLVM
38 lines
916 B
LLVM
|
; 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
|
||
|
|
}
|