1; RUN: opt -passes=gvn -S < %s | FileCheck %s 2target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128-p100:128:64:64-p101:128:64:64" 3target triple = "x86_64-unknown-linux-gnu" 4 5%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 } 6%_array = type { i64, ptr addrspace(100), i8 } 7 8define void @test(i64 %n_chpl) { 9entry: 10 ; First section is some code 11 %0 = getelementptr inbounds %_array, ptr null, i32 0, i32 1 12 %1 = load ptr addrspace(100), ptr %0 13 %2 = getelementptr inbounds %ArrayImpl, ptr addrspace(100) %1, i32 0, i32 8 14 %3 = load ptr addrspace(100), ptr addrspace(100) %2 15 %4 = getelementptr inbounds double, ptr addrspace(100) %3, i64 -1 16 ; Second section is that code repeated 17 %x0 = getelementptr inbounds %_array, ptr null, i32 0, i32 1 18 %x1 = load ptr addrspace(100), ptr %x0 19 %x2 = getelementptr inbounds %ArrayImpl, ptr addrspace(100) %x1, i32 0, i32 8 20 %x3 = load ptr addrspace(100), ptr addrspace(100) %x2 21 %x4 = getelementptr inbounds double, ptr addrspace(100) %x3, i64 -1 22 ; These two stores refer to the same memory location 23 ; Even so, they are expected to remain separate stores here 24 store double 0.000000e+00, ptr addrspace(100) %4 25 store double 0.000000e+00, ptr addrspace(100) %x4 26 ; Third section is the repeated code again, with a later store 27 ; This third section is necessary to trigger the crash 28 %y1 = load ptr addrspace(100), ptr %0 29 %y2 = getelementptr inbounds %ArrayImpl, ptr addrspace(100) %y1, i32 0, i32 8 30 %y3 = load ptr addrspace(100), ptr addrspace(100) %y2 31 %y4 = getelementptr inbounds double, ptr addrspace(100) %y3, i64 -1 32 store double 0.000000e+00, ptr addrspace(100) %y4 33 ret void 34; CHECK-LABEL: define void @test 35; CHECK: getelementptr inbounds double, ptr addrspace(100) {{%.*}}, i64 -1 36; CHECK-NEXT: store double 0.000000e+00, ptr addrspace(100) [[DST:%.*]] 37; CHECK-NEXT: store double 0.000000e+00, ptr addrspace(100) [[DST]] 38; CHECK: load 39; CHECK: getelementptr inbounds %ArrayImpl, ptr addrspace(100) 40; CHECK: load 41; CHECK: getelementptr inbounds double, ptr addrspace(100) {{%.*}}, i64 -1 42; CHECK: store double 0.000000e+00, ptr addrspace(100) 43; CHECK: ret 44} 45