116823adfSArthur Eubanks; RUN: opt -passes=gvn -S < %s | FileCheck %s 27902405cSFlorian Hahntarget datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128-p100:128:64:64-p101:128:64:64" 37902405cSFlorian Hahntarget triple = "x86_64-unknown-linux-gnu" 47902405cSFlorian Hahn 5*7fbbbfd6SNikita Popov%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*7fbbbfd6SNikita Popov%_array = type { i64, ptr addrspace(100), i8 } 77902405cSFlorian Hahn 87902405cSFlorian Hahndefine void @test(i64 %n_chpl) { 97902405cSFlorian Hahnentry: 107902405cSFlorian Hahn ; First section is some code 11*7fbbbfd6SNikita Popov %0 = getelementptr inbounds %_array, ptr null, i32 0, i32 1 12*7fbbbfd6SNikita Popov %1 = load ptr addrspace(100), ptr %0 13*7fbbbfd6SNikita Popov %2 = getelementptr inbounds %ArrayImpl, ptr addrspace(100) %1, i32 0, i32 8 14*7fbbbfd6SNikita Popov %3 = load ptr addrspace(100), ptr addrspace(100) %2 15*7fbbbfd6SNikita Popov %4 = getelementptr inbounds double, ptr addrspace(100) %3, i64 -1 167902405cSFlorian Hahn ; Second section is that code repeated 17*7fbbbfd6SNikita Popov %x0 = getelementptr inbounds %_array, ptr null, i32 0, i32 1 18*7fbbbfd6SNikita Popov %x1 = load ptr addrspace(100), ptr %x0 19*7fbbbfd6SNikita Popov %x2 = getelementptr inbounds %ArrayImpl, ptr addrspace(100) %x1, i32 0, i32 8 20*7fbbbfd6SNikita Popov %x3 = load ptr addrspace(100), ptr addrspace(100) %x2 21*7fbbbfd6SNikita Popov %x4 = getelementptr inbounds double, ptr addrspace(100) %x3, i64 -1 22e39b614dSMichael Ferguson ; These two stores refer to the same memory location 23e39b614dSMichael Ferguson ; Even so, they are expected to remain separate stores here 24*7fbbbfd6SNikita Popov store double 0.000000e+00, ptr addrspace(100) %4 25*7fbbbfd6SNikita Popov store double 0.000000e+00, ptr addrspace(100) %x4 267902405cSFlorian Hahn ; Third section is the repeated code again, with a later store 277902405cSFlorian Hahn ; This third section is necessary to trigger the crash 28*7fbbbfd6SNikita Popov %y1 = load ptr addrspace(100), ptr %0 29*7fbbbfd6SNikita Popov %y2 = getelementptr inbounds %ArrayImpl, ptr addrspace(100) %y1, i32 0, i32 8 30*7fbbbfd6SNikita Popov %y3 = load ptr addrspace(100), ptr addrspace(100) %y2 31*7fbbbfd6SNikita Popov %y4 = getelementptr inbounds double, ptr addrspace(100) %y3, i64 -1 32*7fbbbfd6SNikita Popov store double 0.000000e+00, ptr addrspace(100) %y4 337902405cSFlorian Hahn ret void 347902405cSFlorian Hahn; CHECK-LABEL: define void @test 35*7fbbbfd6SNikita Popov; CHECK: getelementptr inbounds double, ptr addrspace(100) {{%.*}}, i64 -1 36*7fbbbfd6SNikita Popov; CHECK-NEXT: store double 0.000000e+00, ptr addrspace(100) [[DST:%.*]] 37*7fbbbfd6SNikita Popov; CHECK-NEXT: store double 0.000000e+00, ptr addrspace(100) [[DST]] 387902405cSFlorian Hahn; CHECK: load 39*7fbbbfd6SNikita Popov; CHECK: getelementptr inbounds %ArrayImpl, ptr addrspace(100) 407902405cSFlorian Hahn; CHECK: load 41*7fbbbfd6SNikita Popov; CHECK: getelementptr inbounds double, ptr addrspace(100) {{%.*}}, i64 -1 42*7fbbbfd6SNikita Popov; CHECK: store double 0.000000e+00, ptr addrspace(100) 437902405cSFlorian Hahn; CHECK: ret 447902405cSFlorian Hahn} 45