[SCEV] Add initial tests for ptrtoaddr.

Add tests with ptrtoaddr instructions for
llvm#158032.

Based on llvm/test/Analysis/ScalarEvolution/ptrtoint.ll.

Author: fhahn

llvm/test/Analysis/ScalarEvolution/ptrtoaddr.ll

@@ -0,0 +1,135 @@
+; NOTE: Assertions have been autogenerated by utils/update_analyze_test_checks.py
+; RUN: opt < %s --data-layout="e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128" -S -disable-output -disable-verify "-passes=print<scalar-evolution>" 2>&1 | FileCheck --check-prefixes=ALL,X64 %s
+; RUN: opt < %s --data-layout="e-m:e-p:32:32-p270:32:32-p271:32:32-p272:64:64-f64:32:64-f80:32-n8:16:32-S128" -S -disable-output -disable-verify "-passes=print<scalar-evolution>" 2>&1 | FileCheck --check-prefixes=ALL,X32 %s
+
+declare void @useptr(ptr)
+
+define void @ptrtoaddr(ptr %in, ptr %out0, ptr %out1, ptr %out2, ptr %out3) {
+; X64-LABEL: 'ptrtoaddr'
+; X64-NEXT:  Classifying expressions for: @ptrtoaddr
+; X64-NEXT:    %p0 = ptrtoaddr ptr %in to i64
+; X64-NEXT:    --> %p0 U: full-set S: full-set
+; X64-NEXT:    %p1 = ptrtoaddr ptr %in to i32
+; X64-NEXT:    --> %p1 U: full-set S: full-set
+; X64-NEXT:    %p2 = ptrtoaddr ptr %in to i16
+; X64-NEXT:    --> %p2 U: full-set S: full-set
+; X64-NEXT:    %p3 = ptrtoaddr ptr %in to i128
+; X64-NEXT:    --> %p3 U: full-set S: full-set
+; X64-NEXT:  Determining loop execution counts for: @ptrtoaddr
+;
+; X32-LABEL: 'ptrtoaddr'
+; X32-NEXT:  Classifying expressions for: @ptrtoaddr
+; X32-NEXT:    %p0 = ptrtoaddr ptr %in to i64
+; X32-NEXT:    --> %p0 U: full-set S: full-set
+; X32-NEXT:    %p1 = ptrtoaddr ptr %in to i32
+; X32-NEXT:    --> %p1 U: full-set S: full-set
+; X32-NEXT:    %p2 = ptrtoaddr ptr %in to i16
+; X32-NEXT:    --> %p2 U: full-set S: full-set
+; X32-NEXT:    %p3 = ptrtoaddr ptr %in to i128
+; X32-NEXT:    --> %p3 U: full-set S: full-set
+; X32-NEXT:  Determining loop execution counts for: @ptrtoaddr
+;
+  %p0 = ptrtoaddr ptr %in to i64
+  %p1 = ptrtoaddr ptr %in to i32
+  %p2 = ptrtoaddr ptr %in to i16
+  %p3 = ptrtoaddr ptr %in to i128
+  store i64  %p0, ptr  %out0
+  store i32  %p1, ptr  %out1
+  store i16  %p2, ptr  %out2
+  store i128 %p3, ptr %out3
+  ret void
+}
+
+define void @ptrtoaddr_as1(ptr addrspace(1) %in, ptr %out0, ptr %out1, ptr %out2, ptr %out3) {
+; X64-LABEL: 'ptrtoaddr_as1'
+; X64-NEXT:  Classifying expressions for: @ptrtoaddr_as1
+; X64-NEXT:    %p0 = ptrtoaddr ptr addrspace(1) %in to i64
+; X64-NEXT:    --> %p0 U: full-set S: full-set
+; X64-NEXT:    %p1 = ptrtoaddr ptr addrspace(1) %in to i32
+; X64-NEXT:    --> %p1 U: full-set S: full-set
+; X64-NEXT:    %p2 = ptrtoaddr ptr addrspace(1) %in to i16
+; X64-NEXT:    --> %p2 U: full-set S: full-set
+; X64-NEXT:    %p3 = ptrtoaddr ptr addrspace(1) %in to i128
+; X64-NEXT:    --> %p3 U: full-set S: full-set
+; X64-NEXT:  Determining loop execution counts for: @ptrtoaddr_as1
+;
+; X32-LABEL: 'ptrtoaddr_as1'
+; X32-NEXT:  Classifying expressions for: @ptrtoaddr_as1
+; X32-NEXT:    %p0 = ptrtoaddr ptr addrspace(1) %in to i64
+; X32-NEXT:    --> %p0 U: full-set S: full-set
+; X32-NEXT:    %p1 = ptrtoaddr ptr addrspace(1) %in to i32
+; X32-NEXT:    --> %p1 U: full-set S: full-set
+; X32-NEXT:    %p2 = ptrtoaddr ptr addrspace(1) %in to i16
+; X32-NEXT:    --> %p2 U: full-set S: full-set
+; X32-NEXT:    %p3 = ptrtoaddr ptr addrspace(1) %in to i128
+; X32-NEXT:    --> %p3 U: full-set S: full-set
+; X32-NEXT:  Determining loop execution counts for: @ptrtoaddr_as1
+;
+  %p0 = ptrtoaddr ptr addrspace(1) %in to i64
+  %p1 = ptrtoaddr ptr addrspace(1) %in to i32
+  %p2 = ptrtoaddr ptr addrspace(1) %in to i16
+  %p3 = ptrtoaddr ptr addrspace(1) %in to i128
+  store i64  %p0, ptr  %out0
+  store i32  %p1, ptr  %out1
+  store i16  %p2, ptr  %out2
+  store i128 %p3, ptr %out3
+  ret void
+}
+
+define void @ptrtoaddr_of_bitcast(ptr %in, ptr %out0) {
+; X64-LABEL: 'ptrtoaddr_of_bitcast'
+; X64-NEXT:  Classifying expressions for: @ptrtoaddr_of_bitcast
+; X64-NEXT:    %in_casted = bitcast ptr %in to ptr
+; X64-NEXT:    --> %in U: full-set S: full-set
+; X64-NEXT:    %p0 = ptrtoaddr ptr %in_casted to i64
+; X64-NEXT:    --> %p0 U: full-set S: full-set
+; X64-NEXT:  Determining loop execution counts for: @ptrtoaddr_of_bitcast
+;
+; X32-LABEL: 'ptrtoaddr_of_bitcast'
+; X32-NEXT:  Classifying expressions for: @ptrtoaddr_of_bitcast
+; X32-NEXT:    %in_casted = bitcast ptr %in to ptr
+; X32-NEXT:    --> %in U: full-set S: full-set
+; X32-NEXT:    %p0 = ptrtoaddr ptr %in_casted to i64
+; X32-NEXT:    --> %p0 U: full-set S: full-set
+; X32-NEXT:  Determining loop execution counts for: @ptrtoaddr_of_bitcast
+;
+  %in_casted = bitcast ptr %in to ptr
+  %p0 = ptrtoaddr ptr %in_casted to i64
+  store i64 %p0, ptr %out0
+  ret void
+}
+
+define void @ptrtoaddr_of_nullptr(ptr %out0) {
+; ALL-LABEL: 'ptrtoaddr_of_nullptr'
+; ALL-NEXT:  Classifying expressions for: @ptrtoaddr_of_nullptr
+; ALL-NEXT:    %p0 = ptrtoaddr ptr null to i64
+; ALL-NEXT:    --> %p0 U: full-set S: full-set
+; ALL-NEXT:  Determining loop execution counts for: @ptrtoaddr_of_nullptr
+;
+  %p0 = ptrtoaddr ptr null to i64
+  store i64 %p0, ptr %out0
+  ret void
+}
+
+define void @ptrtoaddr_of_gep(ptr %in, ptr %out0) {
+; X64-LABEL: 'ptrtoaddr_of_gep'
+; X64-NEXT:  Classifying expressions for: @ptrtoaddr_of_gep
+; X64-NEXT:    %in_adj = getelementptr inbounds i8, ptr %in, i64 42
+; X64-NEXT:    --> (42 + %in) U: full-set S: full-set
+; X64-NEXT:    %p0 = ptrtoaddr ptr %in_adj to i64
+; X64-NEXT:    --> %p0 U: full-set S: full-set
+; X64-NEXT:  Determining loop execution counts for: @ptrtoaddr_of_gep
+;
+; X32-LABEL: 'ptrtoaddr_of_gep'
+; X32-NEXT:  Classifying expressions for: @ptrtoaddr_of_gep
+; X32-NEXT:    %in_adj = getelementptr inbounds i8, ptr %in, i64 42
+; X32-NEXT:    --> (42 + %in) U: full-set S: full-set
+; X32-NEXT:    %p0 = ptrtoaddr ptr %in_adj to i64
+; X32-NEXT:    --> %p0 U: full-set S: full-set
+; X32-NEXT:  Determining loop execution counts for: @ptrtoaddr_of_gep
+;
+  %in_adj = getelementptr inbounds i8, ptr %in, i64 42
+  %p0 = ptrtoaddr ptr %in_adj to i64
+  store i64  %p0, ptr  %out0
+  ret void
+}