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; 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
}
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