pr46786.ll | Explore in Territory

; NOTE: Assertions have been autogenerated by utils/update_analyze_test_checks.py
; RUN: opt < %s -disable-output "-passes=print<scalar-evolution>" 2>&1 | FileCheck %s

source_filename = "input.cpp"
target datalayout = "e-m:e-p:32:32-i64:64-n32:64-S128"

; Function Attrs: nofree
define ptr @FSE_decompress_usingDTable(ptr %arg, i32 %arg1, i32 %arg2, i32 %arg3) local_unnamed_addr #0 {
; CHECK-LABEL: 'FSE_decompress_usingDTable'
; CHECK-NEXT:  Classifying expressions for: @FSE_decompress_usingDTable
; CHECK-NEXT:    %i = getelementptr inbounds i8, ptr %arg, i32 %arg2
; CHECK-NEXT:    --> (%arg2 + %arg) U: full-set S: full-set
; CHECK-NEXT:    %i4 = sub nsw i32 0, %arg1
; CHECK-NEXT:    --> (-1 * %arg1) U: full-set S: full-set
; CHECK-NEXT:    %i5 = getelementptr inbounds i8, ptr %i, i32 %i4
; CHECK-NEXT:    --> ((-1 * %arg1) + %arg2 + %arg) U: full-set S: full-set
; CHECK-NEXT:    %i7 = select i1 %i6, i32 %arg2, i32 %arg1
; CHECK-NEXT:    --> ((-1 * (ptrtoint ptr %arg to i32)) + (((-1 * %arg1) + (ptrtoint ptr %arg to i32) + %arg2) umin (ptrtoint ptr %arg to i32)) + %arg1) U: full-set S: full-set
; CHECK-NEXT:    %i8 = sub i32 %arg3, %i7
; CHECK-NEXT:    --> ((-1 * (((-1 * %arg1) + (ptrtoint ptr %arg to i32) + %arg2) umin (ptrtoint ptr %arg to i32))) + (-1 * %arg1) + (ptrtoint ptr %arg to i32) + %arg3) U: full-set S: full-set
; CHECK-NEXT:    %i9 = getelementptr inbounds i8, ptr %arg, i32 %i8
; CHECK-NEXT:    --> ((-1 * (((-1 * %arg1) + (ptrtoint ptr %arg to i32) + %arg2) umin (ptrtoint ptr %arg to i32))) + (-1 * %arg1) + (ptrtoint ptr %arg to i32) + %arg3 + %arg) U: full-set S: full-set
; CHECK-NEXT:  Determining loop execution counts for: @FSE_decompress_usingDTable
;
bb:
  %i = getelementptr inbounds i8, ptr %arg, i32 %arg2
  %i4 = sub nsw i32 0, %arg1
  %i5 = getelementptr inbounds i8, ptr %i, i32 %i4
  %i6 = icmp ult ptr %i5, %arg
  %i7 = select i1 %i6, i32 %arg2, i32 %arg1
  %i8 = sub i32 %arg3, %i7
  %i9 = getelementptr inbounds i8, ptr %arg, i32 %i8
  ret ptr %i9
}

define ptr @test_01(ptr %p) {
; CHECK-LABEL: 'test_01'
; CHECK-NEXT:  Classifying expressions for: @test_01
; CHECK-NEXT:    %p1 = getelementptr i8, ptr %p, i32 2
; CHECK-NEXT:    --> (2 + %p) U: full-set S: full-set
; CHECK-NEXT:    %p2 = getelementptr i8, ptr %p, i32 1
; CHECK-NEXT:    --> (1 + %p) U: full-set S: full-set
; CHECK-NEXT:    %index = select i1 %cmp, i32 2, i32 1
; CHECK-NEXT:    --> ((-1 * (ptrtoint ptr %p to i32)) + ((1 + (ptrtoint ptr %p to i32)) umax (2 + (ptrtoint ptr %p to i32)))) U: full-set S: full-set
; CHECK-NEXT:    %neg_index = sub i32 0, %index
; CHECK-NEXT:    --> ((-1 * ((1 + (ptrtoint ptr %p to i32)) umax (2 + (ptrtoint ptr %p to i32)))) + (ptrtoint ptr %p to i32)) U: full-set S: full-set
; CHECK-NEXT:    %gep = getelementptr i8, ptr %p, i32 %neg_index
; CHECK-NEXT:    --> ((-1 * ((1 + (ptrtoint ptr %p to i32)) umax (2 + (ptrtoint ptr %p to i32)))) + (ptrtoint ptr %p to i32) + %p) U: full-set S: full-set
; CHECK-NEXT:  Determining loop execution counts for: @test_01
;
  %p1 = getelementptr i8, ptr %p, i32 2
  %p2 = getelementptr i8, ptr %p, i32 1
  %cmp = icmp ugt ptr %p1, %p2
  %index = select i1 %cmp, i32 2, i32 1
  %neg_index = sub i32 0, %index
  %gep = getelementptr i8, ptr %p, i32 %neg_index
  ret ptr %gep
}

define ptr @test_02(ptr %p) {
; CHECK-LABEL: 'test_02'
; CHECK-NEXT:  Classifying expressions for: @test_02
; CHECK-NEXT:    %p1 = getelementptr i8, ptr %p, i32 2
; CHECK-NEXT:    --> (2 + %p) U: full-set S: full-set
; CHECK-NEXT:    %p2 = getelementptr i8, ptr %p, i32 1
; CHECK-NEXT:    --> (1 + %p) U: full-set S: full-set
; CHECK-NEXT:    %index = select i1 %cmp, i32 2, i32 1
; CHECK-NEXT:    --> ((-1 * (ptrtoint ptr %p to i32)) + ((1 + (ptrtoint ptr %p to i32)) smax (2 + (ptrtoint ptr %p to i32)))) U: full-set S: full-set
; CHECK-NEXT:    %neg_index = sub i32 0, %index
; CHECK-NEXT:    --> ((-1 * ((1 + (ptrtoint ptr %p to i32)) smax (2 + (ptrtoint ptr %p to i32)))) + (ptrtoint ptr %p to i32)) U: full-set S: full-set
; CHECK-NEXT:    %gep = getelementptr i8, ptr %p, i32 %neg_index
; CHECK-NEXT:    --> ((-1 * ((1 + (ptrtoint ptr %p to i32)) smax (2 + (ptrtoint ptr %p to i32)))) + (ptrtoint ptr %p to i32) + %p) U: full-set S: full-set
; CHECK-NEXT:  Determining loop execution counts for: @test_02
;
  %p1 = getelementptr i8, ptr %p, i32 2
  %p2 = getelementptr i8, ptr %p, i32 1
  %cmp = icmp sgt ptr %p1, %p2
  %index = select i1 %cmp, i32 2, i32 1
  %neg_index = sub i32 0, %index
  %gep = getelementptr i8, ptr %p, i32 %neg_index
  ret ptr %gep
}

define ptr @test_03(ptr %p) {
; CHECK-LABEL: 'test_03'
; CHECK-NEXT:  Classifying expressions for: @test_03
; CHECK-NEXT:    %p1 = getelementptr i8, ptr %p, i32 2
; CHECK-NEXT:    --> (2 + %p) U: full-set S: full-set
; CHECK-NEXT:    %p2 = getelementptr i8, ptr %p, i32 1
; CHECK-NEXT:    --> (1 + %p) U: full-set S: full-set
; CHECK-NEXT:    %index = select i1 %cmp, i32 2, i32 1
; CHECK-NEXT:    --> ((-1 * (ptrtoint ptr %p to i32)) + ((1 + (ptrtoint ptr %p to i32)) umin (2 + (ptrtoint ptr %p to i32)))) U: full-set S: full-set
; CHECK-NEXT:    %neg_index = sub i32 0, %index
; CHECK-NEXT:    --> ((-1 * ((1 + (ptrtoint ptr %p to i32)) umin (2 + (ptrtoint ptr %p to i32)))) + (ptrtoint ptr %p to i32)) U: full-set S: full-set
; CHECK-NEXT:    %gep = getelementptr i8, ptr %p, i32 %neg_index
; CHECK-NEXT:    --> ((-1 * ((1 + (ptrtoint ptr %p to i32)) umin (2 + (ptrtoint ptr %p to i32)))) + (ptrtoint ptr %p to i32) + %p) U: full-set S: full-set
; CHECK-NEXT:  Determining loop execution counts for: @test_03
;
  %p1 = getelementptr i8, ptr %p, i32 2
  %p2 = getelementptr i8, ptr %p, i32 1
  %cmp = icmp ult ptr %p1, %p2
  %index = select i1 %cmp, i32 2, i32 1
  %neg_index = sub i32 0, %index
  %gep = getelementptr i8, ptr %p, i32 %neg_index
  ret ptr %gep
}

define ptr @test_04(ptr %p) {
; CHECK-LABEL: 'test_04'
; CHECK-NEXT:  Classifying expressions for: @test_04
; CHECK-NEXT:    %p1 = getelementptr i8, ptr %p, i32 2
; CHECK-NEXT:    --> (2 + %p) U: full-set S: full-set
; CHECK-NEXT:    %p2 = getelementptr i8, ptr %p, i32 1
; CHECK-NEXT:    --> (1 + %p) U: full-set S: full-set
; CHECK-NEXT:    %index = select i1 %cmp, i32 2, i32 1
; CHECK-NEXT:    --> ((-1 * (ptrtoint ptr %p to i32)) + ((1 + (ptrtoint ptr %p to i32)) smin (2 + (ptrtoint ptr %p to i32)))) U: full-set S: full-set
; CHECK-NEXT:    %neg_index = sub i32 0, %index
; CHECK-NEXT:    --> ((-1 * ((1 + (ptrtoint ptr %p to i32)) smin (2 + (ptrtoint ptr %p to i32)))) + (ptrtoint ptr %p to i32)) U: full-set S: full-set
; CHECK-NEXT:    %gep = getelementptr i8, ptr %p, i32 %neg_index
; CHECK-NEXT:    --> ((-1 * ((1 + (ptrtoint ptr %p to i32)) smin (2 + (ptrtoint ptr %p to i32)))) + (ptrtoint ptr %p to i32) + %p) U: full-set S: full-set
; CHECK-NEXT:  Determining loop execution counts for: @test_04
;
  %p1 = getelementptr i8, ptr %p, i32 2
  %p2 = getelementptr i8, ptr %p, i32 1
  %cmp = icmp slt ptr %p1, %p2
  %index = select i1 %cmp, i32 2, i32 1
  %neg_index = sub i32 0, %index
  %gep = getelementptr i8, ptr %p, i32 %neg_index
  ret ptr %gep
}

attributes #0 = { nofree }
llvm/llvm/test/Analysis/ScalarEvolution/pr46786.ll
