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[NFC][SCEV] Add test with 'or' with no common bits set

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This commit is contained in:
Roman Lebedev 2020-06-05 12:18:15 +03:00
parent 0362138d32
commit 9b320f8868
1 changed files with 16 additions and 0 deletions
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test/Analysis/ScalarEvolution/add-like-or.ll Normal file
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; NOTE: Assertions have been autogenerated by utils/update_analyze_test_checks.py
; RUN: opt < %s -S -analyze -scalar-evolution | FileCheck %s
define i8 @or-of-constant-with-no-common-bits-set(i8 %x, i8 %y) {
; CHECK-LABEL: 'or-of-constant-with-no-common-bits-set'
; CHECK-NEXT: Classifying expressions for: @or-of-constant-with-no-common-bits-set
; CHECK-NEXT: %t0 = shl i8 %x, 2
; CHECK-NEXT: --> (4 * %x) U: [0,-3) S: [-128,125)
; CHECK-NEXT: %r = or i8 %t0, 3
; CHECK-NEXT: --> (3 + (4 * %x))<nuw><nsw> U: [3,0) S: [-125,-128)
; CHECK-NEXT: Determining loop execution counts for: @or-of-constant-with-no-common-bits-set
;
%t0 = shl i8 %x, 2
%r = or i8 %t0, 3
ret i8 %r
}