| ; RUN: opt -passes=gvn -S < %s | FileCheck %s |
| target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128-p100:128:64:64-p101:128:64:64" |
| target triple = "x86_64-unknown-linux-gnu" |
| |
| %ArrayImpl = type { i64, ptr addrspace(100), [1 x i64], [1 x i64], [1 x i64], i64, i64, ptr addrspace(100), ptr addrspace(100), i8, i64 } |
| %_array = type { i64, ptr addrspace(100), i8 } |
| |
| define void @test(i64 %n_chpl) { |
| entry: |
| ; First section is some code |
| %0 = getelementptr inbounds %_array, ptr null, i32 0, i32 1 |
| %1 = load ptr addrspace(100), ptr %0 |
| %2 = getelementptr inbounds %ArrayImpl, ptr addrspace(100) %1, i32 0, i32 8 |
| %3 = load ptr addrspace(100), ptr addrspace(100) %2 |
| %4 = getelementptr inbounds double, ptr addrspace(100) %3, i64 -1 |
| ; Second section is that code repeated |
| %x0 = getelementptr inbounds %_array, ptr null, i32 0, i32 1 |
| %x1 = load ptr addrspace(100), ptr %x0 |
| %x2 = getelementptr inbounds %ArrayImpl, ptr addrspace(100) %x1, i32 0, i32 8 |
| %x3 = load ptr addrspace(100), ptr addrspace(100) %x2 |
| %x4 = getelementptr inbounds double, ptr addrspace(100) %x3, i64 -1 |
| ; These two stores refer to the same memory location |
| ; Even so, they are expected to remain separate stores here |
| store double 0.000000e+00, ptr addrspace(100) %4 |
| store double 0.000000e+00, ptr addrspace(100) %x4 |
| ; Third section is the repeated code again, with a later store |
| ; This third section is necessary to trigger the crash |
| %y1 = load ptr addrspace(100), ptr %0 |
| %y2 = getelementptr inbounds %ArrayImpl, ptr addrspace(100) %y1, i32 0, i32 8 |
| %y3 = load ptr addrspace(100), ptr addrspace(100) %y2 |
| %y4 = getelementptr inbounds double, ptr addrspace(100) %y3, i64 -1 |
| store double 0.000000e+00, ptr addrspace(100) %y4 |
| ret void |
| ; CHECK-LABEL: define void @test |
| ; CHECK: getelementptr inbounds double, ptr addrspace(100) {{%.*}}, i64 -1 |
| ; CHECK-NEXT: store double 0.000000e+00, ptr addrspace(100) [[DST:%.*]] |
| ; CHECK-NEXT: store double 0.000000e+00, ptr addrspace(100) [[DST]] |
| ; CHECK: load |
| ; CHECK: getelementptr inbounds %ArrayImpl, ptr addrspace(100) |
| ; CHECK: load |
| ; CHECK: getelementptr inbounds double, ptr addrspace(100) {{%.*}}, i64 -1 |
| ; CHECK: store double 0.000000e+00, ptr addrspace(100) |
| ; CHECK: ret |
| } |