forked from OSchip/llvm-project
45 lines
1.7 KiB
LLVM
45 lines
1.7 KiB
LLVM
; RUN: llc -mcpu=cyclone -debug-only=misched < %s 2>&1 | FileCheck %s
|
|
|
|
; REQUIRES: asserts
|
|
|
|
target datalayout = "e-m:o-i64:64-i128:128-n32:64-S128"
|
|
target triple = "arm64-apple-ios7.0.0"
|
|
|
|
define void @caller2(i8* %a0, i8* %a1, i8* %a2, i8* %a3, i8* %a4, i8* %a5, i8* %a6, i8* %a7, i8* %a8, i8* %a9) {
|
|
entry:
|
|
tail call void @callee2(i8* %a1, i8* %a2, i8* %a3, i8* %a4, i8* %a5, i8* %a6, i8* %a7, i8* %a8, i8* %a9, i8* %a0)
|
|
ret void
|
|
}
|
|
|
|
declare void @callee2(i8*, i8*, i8*, i8*, i8*,
|
|
i8*, i8*, i8*, i8*, i8*)
|
|
|
|
; Make sure there is a dependence between the load and store to the same stack
|
|
; location during a tail call. Tail calls clobber the incoming argument area and
|
|
; therefore it is not safe to assume argument locations are invariant.
|
|
; PR23459 has a test case that we where miscompiling because of this at the
|
|
; time.
|
|
|
|
; CHECK: Frame Objects
|
|
; CHECK: fi#-4: {{.*}} fixed, at location [SP+8]
|
|
; CHECK: fi#-3: {{.*}} fixed, at location [SP]
|
|
; CHECK: fi#-2: {{.*}} fixed, at location [SP+8]
|
|
; CHECK: fi#-1: {{.*}} fixed, at location [SP]
|
|
|
|
; CHECK: [[VRA:%vreg.*]]<def> = LDRXui <fi#-1>
|
|
; CHECK: [[VRB:%vreg.*]]<def> = LDRXui <fi#-2>
|
|
; CHECK: STRXui %vreg{{.*}}, <fi#-4>
|
|
; CHECK: STRXui [[VRB]], <fi#-3>
|
|
|
|
; Make sure that there is an dependence edge between fi#-2 and fi#-4.
|
|
; Without this edge the scheduler would be free to move the store accross the load.
|
|
|
|
; CHECK: SU({{.*}}): [[VRB]]<def> = LDRXui <fi#-2>
|
|
; CHECK-NOT: SU
|
|
; CHECK: Successors:
|
|
; CHECK: ord SU([[DEPSTOREB:.*]]): Latency=0
|
|
; CHECK: ord SU([[DEPSTOREA:.*]]): Latency=0
|
|
|
|
; CHECK: SU([[DEPSTOREA]]): STRXui %vreg{{.*}}, <fi#-4>
|
|
; CHECK: SU([[DEPSTOREB]]): STRXui %vreg{{.*}}, <fi#-3>
|