pr46786.ll
1.78 KB
; NOTE: Assertions have been autogenerated by utils/update_analyze_test_checks.py
; RUN: opt < %s -analyze -enable-new-pm=0 -scalar-evolution | FileCheck %s
source_filename = "input.cpp"
target datalayout = "e-m:e-p:32:32-i64:64-n32:64-S128"
; Function Attrs: nofree
define i8* @FSE_decompress_usingDTable(i8* %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, i8* %arg, i32 %arg2
; CHECK-NEXT: --> (%arg2 + %arg)<nsw> 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, i8* %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 * %arg) + (((-1 * %arg1) + %arg2 + %arg) umin %arg) + %arg1) U: full-set S: full-set
; CHECK-NEXT: %i8 = sub i32 %arg3, %i7
; CHECK-NEXT: --> ((-1 * (((-1 * %arg1) + %arg2 + %arg) umin %arg)) + (-1 * %arg1) + %arg3 + %arg) U: full-set S: full-set
; CHECK-NEXT: %i9 = getelementptr inbounds i8, i8* %arg, i32 %i8
; CHECK-NEXT: --> ((2 * %arg) + (-1 * (((-1 * %arg1) + %arg2 + %arg) umin %arg)) + (-1 * %arg1) + %arg3) U: full-set S: full-set
; CHECK-NEXT: Determining loop execution counts for: @FSE_decompress_usingDTable
;
bb:
%i = getelementptr inbounds i8, i8* %arg, i32 %arg2
%i4 = sub nsw i32 0, %arg1
%i5 = getelementptr inbounds i8, i8* %i, i32 %i4
%i6 = icmp ult i8* %i5, %arg
%i7 = select i1 %i6, i32 %arg2, i32 %arg1
%i8 = sub i32 %arg3, %i7
%i9 = getelementptr inbounds i8, i8* %arg, i32 %i8
ret i8* %i9
}
attributes #0 = { nofree }