| ; RUN: llc < %s -o /dev/null "-mtriple=thumbv7-apple-ios" -debug-only=post-RA-sched 2> %t |
| ; RUN: FileCheck %s < %t |
| ; REQUIRES: asserts |
| ; Make sure that mayalias store-load dependencies have one cycle |
| ; latency regardless of whether they are barriers or not. |
| |
| ; CHECK: ** List Scheduling |
| ; CHECK: SU(2){{.*}}STR{{.*}}Volatile |
| ; CHECK-NOT: ch SU |
| ; CHECK: ch SU(3): Latency=1 |
| ; CHECK-NOT: ch SU |
| ; CHECK: SU(3){{.*}}LDR{{.*}}Volatile |
| ; CHECK-NOT: ch SU |
| ; CHECK: ch SU(2): Latency=1 |
| ; CHECK-NOT: ch SU |
| ; CHECK: Successors: |
| ; CHECK: ** List Scheduling |
| ; CHECK: SU(2){{.*}}STR{{.*}} |
| ; CHECK-NOT: ch SU |
| ; CHECK: ch SU(3): Latency=1 |
| ; CHECK-NOT: ch SU |
| ; CHECK: SU(3){{.*}}LDR{{.*}} |
| ; CHECK-NOT: ch SU |
| ; CHECK: ch SU(2): Latency=1 |
| ; CHECK-NOT: ch SU |
| ; CHECK: Successors: |
| define i32 @f1(i32* nocapture %p1, i32* nocapture %p2) nounwind { |
| entry: |
| store volatile i32 65540, i32* %p1, align 4 |
| %0 = load volatile i32* %p2, align 4 |
| ret i32 %0 |
| } |
| |
| define i32 @f2(i32* nocapture %p1, i32* nocapture %p2) nounwind { |
| entry: |
| store i32 65540, i32* %p1, align 4 |
| %0 = load i32* %p2, align 4 |
| ret i32 %0 |
| } |
