derek.holloway
7502bf64a4
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126 lines
4.5 KiB
LLVM
126 lines
4.5 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_analyze_test_checks.py UTC_ARGS: --version 6
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; RUN: opt -S -passes='print<scalar-evolution>' -disable-output < %s 2>&1 | FileCheck %s
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declare void @noundef(i8 noundef)
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define i8 @udiv_zero(i8 %x) {
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; CHECK-LABEL: 'udiv_zero'
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; CHECK-NEXT: Classifying expressions for: @udiv_zero
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; CHECK-NEXT: %div = udiv i8 0, %x
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; CHECK-NEXT: --> 0 U: [0,1) S: [0,1)
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; CHECK-NEXT: Determining loop execution counts for: @udiv_zero
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;
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%div = udiv i8 0, %x
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ret i8 %div
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}
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define i8 @udiv_by_one(i8 %x) {
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; CHECK-LABEL: 'udiv_by_one'
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; CHECK-NEXT: Classifying expressions for: @udiv_by_one
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; CHECK-NEXT: %div = udiv i8 %x, 1
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; CHECK-NEXT: --> %x U: full-set S: full-set
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; CHECK-NEXT: Determining loop execution counts for: @udiv_by_one
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;
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%div = udiv i8 %x, 1
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ret i8 %div
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}
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define i8 @udiv_mul_nuw_const_by_const1(i8 range(i8 0, 16) %x) {
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; CHECK-LABEL: 'udiv_mul_nuw_const_by_const1'
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; CHECK-NEXT: Classifying expressions for: @udiv_mul_nuw_const_by_const1
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; CHECK-NEXT: %mul = mul i8 %x, 3
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; CHECK-NEXT: --> (3 * %x)<nuw><nsw> U: [0,46) S: [0,46)
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; CHECK-NEXT: %div = udiv i8 %mul, 3
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; CHECK-NEXT: --> %x U: [0,16) S: [0,16)
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; CHECK-NEXT: Determining loop execution counts for: @udiv_mul_nuw_const_by_const1
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;
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%mul = mul i8 %x, 3
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%div = udiv i8 %mul, 3
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ret i8 %div
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}
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define i8 @udiv_mul_nuw_const_by_const2(i8 range(i8 0, 16) %x) {
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; CHECK-LABEL: 'udiv_mul_nuw_const_by_const2'
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; CHECK-NEXT: Classifying expressions for: @udiv_mul_nuw_const_by_const2
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; CHECK-NEXT: %mul = mul i8 %x, 6
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; CHECK-NEXT: --> (6 * %x)<nuw><nsw> U: [0,91) S: [0,91)
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; CHECK-NEXT: %div = udiv i8 %mul, 3
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; CHECK-NEXT: --> (2 * %x)<nuw><nsw> U: [0,31) S: [0,31)
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; CHECK-NEXT: Determining loop execution counts for: @udiv_mul_nuw_const_by_const2
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;
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%mul = mul i8 %x, 6
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%div = udiv i8 %mul, 3
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ret i8 %div
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}
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define i8 @udiv_mul_nuw_const_by_const_common_factor(i8 range(i8 0, 16) %x) {
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; CHECK-LABEL: 'udiv_mul_nuw_const_by_const_common_factor'
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; CHECK-NEXT: Classifying expressions for: @udiv_mul_nuw_const_by_const_common_factor
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; CHECK-NEXT: %mul = mul i8 %x, 6
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; CHECK-NEXT: --> (6 * %x)<nuw><nsw> U: [0,91) S: [0,91)
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; CHECK-NEXT: %div = udiv i8 %mul, 4
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; CHECK-NEXT: --> ((3 * %x)<nuw><nsw> /u 2) U: [0,23) S: [0,23)
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; CHECK-NEXT: Determining loop execution counts for: @udiv_mul_nuw_const_by_const_common_factor
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;
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%mul = mul i8 %x, 6
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%div = udiv i8 %mul, 4
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ret i8 %div
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}
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define i8 @udiv_mul_nuw_const_by_const_no_common_factor(i8 range(i8 0, 16) %x) {
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; CHECK-LABEL: 'udiv_mul_nuw_const_by_const_no_common_factor'
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; CHECK-NEXT: Classifying expressions for: @udiv_mul_nuw_const_by_const_no_common_factor
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; CHECK-NEXT: %mul = mul i8 %x, 7
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; CHECK-NEXT: --> (7 * %x)<nuw><nsw> U: [0,106) S: [0,106)
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; CHECK-NEXT: %div = udiv i8 %mul, 4
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; CHECK-NEXT: --> ((7 * %x)<nuw><nsw> /u 4) U: [0,27) S: [0,27)
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; CHECK-NEXT: Determining loop execution counts for: @udiv_mul_nuw_const_by_const_no_common_factor
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;
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%mul = mul i8 %x, 7
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%div = udiv i8 %mul, 4
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ret i8 %div
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}
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define i8 @udiv_mul_const_by_const_not_nuw(i8 %x) {
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; CHECK-LABEL: 'udiv_mul_const_by_const_not_nuw'
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; CHECK-NEXT: Classifying expressions for: @udiv_mul_const_by_const_not_nuw
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; CHECK-NEXT: %mul = mul i8 %x, 3
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; CHECK-NEXT: --> (3 * %x) U: full-set S: full-set
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; CHECK-NEXT: %div = udiv i8 %mul, 3
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; CHECK-NEXT: --> ((3 * %x) /u 3) U: [0,86) S: [0,86)
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; CHECK-NEXT: Determining loop execution counts for: @udiv_mul_const_by_const_not_nuw
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;
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%mul = mul i8 %x, 3
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%div = udiv i8 %mul, 3
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ret i8 %div
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}
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define i8 @udiv_mul_nuw_by_factor(i8 %x, i8 %y) {
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; CHECK-LABEL: 'udiv_mul_nuw_by_factor'
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; CHECK-NEXT: Classifying expressions for: @udiv_mul_nuw_by_factor
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; CHECK-NEXT: %mul = mul nuw i8 %x, %y
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; CHECK-NEXT: --> (%x * %y)<nuw> U: full-set S: full-set
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; CHECK-NEXT: %div = udiv i8 %mul, %y
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; CHECK-NEXT: --> %x U: full-set S: full-set
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; CHECK-NEXT: Determining loop execution counts for: @udiv_mul_nuw_by_factor
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;
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%mul = mul nuw i8 %x, %y
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call void @noundef(i8 %mul)
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%div = udiv i8 %mul, %y
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ret i8 %div
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}
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define i8 @udiv_mul_by_factor_not_nuw(i8 %x, i8 %y) {
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; CHECK-LABEL: 'udiv_mul_by_factor_not_nuw'
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; CHECK-NEXT: Classifying expressions for: @udiv_mul_by_factor_not_nuw
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; CHECK-NEXT: %mul = mul i8 %x, %y
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; CHECK-NEXT: --> (%x * %y) U: full-set S: full-set
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; CHECK-NEXT: %div = udiv i8 %mul, %y
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; CHECK-NEXT: --> ((%x * %y) /u %y) U: full-set S: full-set
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; CHECK-NEXT: Determining loop execution counts for: @udiv_mul_by_factor_not_nuw
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;
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%mul = mul i8 %x, %y
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%div = udiv i8 %mul, %y
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ret i8 %div
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}
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