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https://github.com/RPCS3/llvm-mirror.git
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59b7da73aa
A == B map to A >= B && A <= B (https://alive2.llvm.org/ce/z/_dwxKn). This extends the constraint construction to return a list of constraints, which can be used to properly de-compose nested AND & OR.
379 lines
12 KiB
LLVM
379 lines
12 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt -constraint-elimination -S %s | FileCheck %s
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define i1 @test_eq_1(i8 %a, i8 %b) {
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; CHECK-LABEL: @test_eq_1(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: [[CMP:%.*]] = icmp eq i8 [[A:%.*]], [[B:%.*]]
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; CHECK-NEXT: br i1 [[CMP]], label [[THEN:%.*]], label [[ELSE:%.*]]
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; CHECK: then:
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; CHECK-NEXT: [[T_1:%.*]] = icmp uge i8 [[A]], [[B]]
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; CHECK-NEXT: [[T_2:%.*]] = icmp ule i8 [[A]], [[B]]
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; CHECK-NEXT: [[RES_1:%.*]] = xor i1 true, true
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; CHECK-NEXT: [[T_3:%.*]] = icmp eq i8 [[A]], [[B]]
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; CHECK-NEXT: [[RES_2:%.*]] = xor i1 [[RES_1]], [[T_3]]
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; CHECK-NEXT: [[T_4:%.*]] = icmp eq i8 [[B]], [[A]]
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; CHECK-NEXT: [[RES_3:%.*]] = xor i1 [[RES_2]], [[T_4]]
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; CHECK-NEXT: [[F_1:%.*]] = icmp ugt i8 [[B]], [[A]]
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; CHECK-NEXT: [[RES_4:%.*]] = xor i1 [[RES_3]], false
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; CHECK-NEXT: [[F_2:%.*]] = icmp ult i8 [[B]], [[A]]
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; CHECK-NEXT: [[RES_5:%.*]] = xor i1 [[RES_4]], false
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; CHECK-NEXT: [[C_1:%.*]] = icmp ult i8 [[B]], 99
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; CHECK-NEXT: [[RES_6:%.*]] = xor i1 [[RES_5]], [[C_1]]
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; CHECK-NEXT: ret i1 [[RES_6]]
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; CHECK: else:
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; CHECK-NEXT: [[F_3:%.*]] = icmp eq i8 [[A]], [[B]]
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; CHECK-NEXT: [[F_4:%.*]] = icmp eq i8 [[B]], [[A]]
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; CHECK-NEXT: [[RES_7:%.*]] = xor i1 [[F_3]], [[F_4]]
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; CHECK-NEXT: [[C_2:%.*]] = icmp ult i8 [[B]], 99
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; CHECK-NEXT: [[RES_8:%.*]] = xor i1 [[RES_7]], [[C_2]]
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; CHECK-NEXT: [[C_3:%.*]] = icmp uge i8 [[A]], [[B]]
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; CHECK-NEXT: [[RES_9:%.*]] = xor i1 [[RES_8]], [[C_3]]
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; CHECK-NEXT: [[C_4:%.*]] = icmp ule i8 [[A]], [[B]]
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; CHECK-NEXT: [[RES_10:%.*]] = xor i1 [[RES_9]], [[C_4]]
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; CHECK-NEXT: [[C_5:%.*]] = icmp ugt i8 [[B]], [[A]]
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; CHECK-NEXT: [[RES_11:%.*]] = xor i1 [[RES_10]], [[C_5]]
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; CHECK-NEXT: [[C_6:%.*]] = icmp ult i8 [[B]], [[A]]
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; CHECK-NEXT: [[RES_12:%.*]] = xor i1 [[RES_11]], [[C_6]]
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; CHECK-NEXT: ret i1 [[RES_12]]
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;
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entry:
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%cmp = icmp eq i8 %a, %b
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br i1 %cmp, label %then, label %else
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then:
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%t.1 = icmp uge i8 %a, %b
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%t.2 = icmp ule i8 %a, %b
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%res.1 = xor i1 %t.1, %t.2
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%t.3 = icmp eq i8 %a, %b
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%res.2 = xor i1 %res.1, %t.3
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%t.4 = icmp eq i8 %b, %a
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%res.3 = xor i1 %res.2, %t.4
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%f.1 = icmp ugt i8 %b, %a
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%res.4 = xor i1 %res.3, %f.1
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%f.2 = icmp ult i8 %b, %a
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%res.5 = xor i1 %res.4, %f.2
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%c.1 = icmp ult i8 %b, 99
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%res.6 = xor i1 %res.5, %c.1
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ret i1 %res.6
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else:
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%f.3 = icmp eq i8 %a, %b
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%f.4 = icmp eq i8 %b, %a
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%res.7 = xor i1 %f.3, %f.4
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%c.2 = icmp ult i8 %b, 99
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%res.8 = xor i1 %res.7, %c.2
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%c.3 = icmp uge i8 %a, %b
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%res.9 = xor i1 %res.8, %c.3
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%c.4 = icmp ule i8 %a, %b
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%res.10 = xor i1 %res.9, %c.4
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%c.5 = icmp ugt i8 %b, %a
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%res.11 = xor i1 %res.10, %c.5
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%c.6 = icmp ult i8 %b, %a
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%res.12 = xor i1 %res.11, %c.6
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ret i1 %res.12
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}
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define i1 @test_eq_2(i8 %a, i8 %b) {
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; CHECK-LABEL: @test_eq_2(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: [[PRE_1:%.*]] = icmp eq i8 [[A:%.*]], [[B:%.*]]
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; CHECK-NEXT: br i1 [[PRE_1]], label [[THEN:%.*]], label [[ELSE:%.*]]
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; CHECK: then:
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; CHECK-NEXT: [[PRE_3:%.*]] = icmp ult i8 [[B]], 100
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; CHECK-NEXT: br i1 [[PRE_3]], label [[THEN_THEN:%.*]], label [[THEN_ELSE:%.*]]
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; CHECK: then.then:
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; CHECK-NEXT: [[T_1:%.*]] = icmp ult i8 [[A]], 100
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; CHECK-NEXT: [[T_2:%.*]] = icmp ult i8 [[B]], 100
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; CHECK-NEXT: [[XOR_1:%.*]] = xor i1 true, true
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; CHECK-NEXT: [[F_1:%.*]] = icmp uge i8 [[A]], 100
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; CHECK-NEXT: [[XOR_2:%.*]] = xor i1 [[XOR_1]], false
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; CHECK-NEXT: [[F_2:%.*]] = icmp uge i8 [[B]], 100
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; CHECK-NEXT: [[XOR_3:%.*]] = xor i1 [[XOR_2]], false
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; CHECK-NEXT: [[F_3_1:%.*]] = icmp ugt i8 [[A]], 99
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; CHECK-NEXT: [[XOR_4:%.*]] = xor i1 [[XOR_3]], false
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; CHECK-NEXT: [[C_1:%.*]] = icmp ult i8 [[A]], 99
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; CHECK-NEXT: [[XOR_5:%.*]] = xor i1 [[XOR_4]], [[C_1]]
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; CHECK-NEXT: [[C_2:%.*]] = icmp ugt i8 [[A]], 98
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; CHECK-NEXT: [[XOR_6:%.*]] = xor i1 [[XOR_5]], [[C_1]]
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; CHECK-NEXT: ret i1 [[XOR_6]]
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; CHECK: then.else:
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; CHECK-NEXT: [[F_4:%.*]] = icmp ult i8 [[A]], 100
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; CHECK-NEXT: [[F_5:%.*]] = icmp ult i8 [[B]], 100
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; CHECK-NEXT: [[XOR_7:%.*]] = xor i1 false, false
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; CHECK-NEXT: [[T_3:%.*]] = icmp uge i8 [[A]], 100
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; CHECK-NEXT: [[XOR_8:%.*]] = xor i1 [[XOR_7]], true
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; CHECK-NEXT: [[T_4:%.*]] = icmp uge i8 [[B]], 100
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; CHECK-NEXT: [[XOR_9:%.*]] = xor i1 [[XOR_8]], true
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; CHECK-NEXT: [[T_5:%.*]] = icmp ugt i8 [[A]], 99
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; CHECK-NEXT: [[XOR_10:%.*]] = xor i1 [[XOR_9]], true
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; CHECK-NEXT: [[C_3:%.*]] = icmp ult i8 [[A]], 99
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; CHECK-NEXT: [[XOR_11:%.*]] = xor i1 [[XOR_10]], false
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; CHECK-NEXT: [[C_4:%.*]] = icmp ugt i8 [[A]], 98
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; CHECK-NEXT: [[XOR_12:%.*]] = xor i1 [[XOR_11]], true
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; CHECK-NEXT: ret i1 [[XOR_12]]
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; CHECK: else:
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; CHECK-NEXT: [[CMP_2:%.*]] = icmp ult i8 [[A]], 100
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; CHECK-NEXT: ret i1 [[CMP_2]]
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;
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entry:
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%pre.1 = icmp eq i8 %a, %b
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br i1 %pre.1, label %then, label %else
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then:
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%pre.3 = icmp ult i8 %b, 100
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br i1 %pre.3, label %then.then, label %then.else
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then.then:
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%t.1 = icmp ult i8 %a, 100
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%t.2 = icmp ult i8 %b, 100
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%xor.1 = xor i1 %t.1, %t.2
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%f.1 = icmp uge i8 %a, 100
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%xor.2 = xor i1 %xor.1, %f.1
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%f.2 = icmp uge i8 %b, 100
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%xor.3 = xor i1 %xor.2, %f.2
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%f.3.1 = icmp ugt i8 %a, 99
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%xor.4 = xor i1 %xor.3, %f.3.1
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%c.1 = icmp ult i8 %a, 99
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%xor.5 = xor i1 %xor.4, %c.1
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%c.2 = icmp ugt i8 %a, 98
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%xor.6 = xor i1 %xor.5, %c.1
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ret i1 %xor.6
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then.else:
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%f.4 = icmp ult i8 %a, 100
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%f.5 = icmp ult i8 %b, 100
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%xor.7 = xor i1 %f.4, %f.5
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%t.3 = icmp uge i8 %a, 100
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%xor.8 = xor i1 %xor.7, %t.3
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%t.4 = icmp uge i8 %b, 100
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%xor.9 = xor i1 %xor.8, %t.4
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%t.5 = icmp ugt i8 %a, 99
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%xor.10 = xor i1 %xor.9, %t.5
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%c.3 = icmp ult i8 %a, 99
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%xor.11 = xor i1 %xor.10, %c.3
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%c.4 = icmp ugt i8 %a, 98
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%xor.12 = xor i1 %xor.11, %c.4
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ret i1 %xor.12
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else:
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%cmp.2 = icmp ult i8 %a, 100
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ret i1 %cmp.2
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}
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; Test of explicitly using uge & ule instead of eq.
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define i1 @test_eq_as_uge_ule_(i8 %a, i8 %b) {
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; CHECK-LABEL: @test_eq_as_uge_ule_(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: [[PRE_1:%.*]] = icmp uge i8 [[A:%.*]], [[B:%.*]]
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; CHECK-NEXT: [[PRE_2:%.*]] = icmp ule i8 [[A]], [[B]]
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; CHECK-NEXT: [[PRE_AND:%.*]] = and i1 [[PRE_1]], [[PRE_2]]
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; CHECK-NEXT: br i1 [[PRE_AND]], label [[THEN:%.*]], label [[ELSE:%.*]]
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; CHECK: then:
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; CHECK-NEXT: [[PRE_3:%.*]] = icmp ult i8 [[B]], 100
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; CHECK-NEXT: br i1 [[PRE_3]], label [[THEN_THEN:%.*]], label [[THEN_ELSE:%.*]]
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; CHECK: then.then:
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; CHECK-NEXT: [[T_1:%.*]] = icmp ult i8 [[A]], 100
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; CHECK-NEXT: [[T_2:%.*]] = icmp ult i8 [[B]], 100
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; CHECK-NEXT: [[XOR_1:%.*]] = xor i1 true, true
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; CHECK-NEXT: [[F_1:%.*]] = icmp uge i8 [[A]], 100
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; CHECK-NEXT: [[XOR_2:%.*]] = xor i1 [[XOR_1]], false
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; CHECK-NEXT: [[F_2:%.*]] = icmp uge i8 [[B]], 100
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; CHECK-NEXT: [[XOR_3:%.*]] = xor i1 [[XOR_2]], false
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; CHECK-NEXT: [[F_3_1:%.*]] = icmp ugt i8 [[A]], 99
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; CHECK-NEXT: [[XOR_4:%.*]] = xor i1 [[XOR_3]], false
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; CHECK-NEXT: [[C_1:%.*]] = icmp ult i8 [[A]], 99
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; CHECK-NEXT: [[XOR_5:%.*]] = xor i1 [[XOR_4]], [[C_1]]
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; CHECK-NEXT: [[C_2:%.*]] = icmp ugt i8 [[A]], 98
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; CHECK-NEXT: [[XOR_6:%.*]] = xor i1 [[XOR_5]], [[C_1]]
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; CHECK-NEXT: ret i1 [[XOR_6]]
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; CHECK: then.else:
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; CHECK-NEXT: [[F_4:%.*]] = icmp ult i8 [[A]], 100
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; CHECK-NEXT: [[F_5:%.*]] = icmp ult i8 [[B]], 100
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; CHECK-NEXT: [[XOR_7:%.*]] = xor i1 false, false
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; CHECK-NEXT: [[T_3:%.*]] = icmp uge i8 [[A]], 100
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; CHECK-NEXT: [[XOR_8:%.*]] = xor i1 [[XOR_7]], true
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; CHECK-NEXT: [[T_4:%.*]] = icmp uge i8 [[B]], 100
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; CHECK-NEXT: [[XOR_9:%.*]] = xor i1 [[XOR_8]], true
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; CHECK-NEXT: [[T_5:%.*]] = icmp ugt i8 [[A]], 99
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; CHECK-NEXT: [[XOR_10:%.*]] = xor i1 [[XOR_9]], true
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; CHECK-NEXT: [[C_3:%.*]] = icmp ult i8 [[A]], 99
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; CHECK-NEXT: [[XOR_11:%.*]] = xor i1 [[XOR_10]], false
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; CHECK-NEXT: [[C_4:%.*]] = icmp ugt i8 [[A]], 98
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; CHECK-NEXT: [[XOR_12:%.*]] = xor i1 [[XOR_11]], true
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; CHECK-NEXT: ret i1 [[XOR_12]]
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; CHECK: else:
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; CHECK-NEXT: [[CMP_2:%.*]] = icmp ult i8 [[A]], 100
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; CHECK-NEXT: ret i1 [[CMP_2]]
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;
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entry:
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%pre.1 = icmp uge i8 %a, %b
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%pre.2 = icmp ule i8 %a, %b
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%pre.and = and i1 %pre.1, %pre.2
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br i1 %pre.and, label %then, label %else
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then:
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%pre.3 = icmp ult i8 %b, 100
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br i1 %pre.3, label %then.then, label %then.else
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then.then:
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%t.1 = icmp ult i8 %a, 100
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%t.2 = icmp ult i8 %b, 100
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%xor.1 = xor i1 %t.1, %t.2
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%f.1 = icmp uge i8 %a, 100
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%xor.2 = xor i1 %xor.1, %f.1
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%f.2 = icmp uge i8 %b, 100
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%xor.3 = xor i1 %xor.2, %f.2
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%f.3.1 = icmp ugt i8 %a, 99
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%xor.4 = xor i1 %xor.3, %f.3.1
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%c.1 = icmp ult i8 %a, 99
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%xor.5 = xor i1 %xor.4, %c.1
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%c.2 = icmp ugt i8 %a, 98
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%xor.6 = xor i1 %xor.5, %c.1
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ret i1 %xor.6
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then.else:
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%f.4 = icmp ult i8 %a, 100
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%f.5 = icmp ult i8 %b, 100
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%xor.7 = xor i1 %f.4, %f.5
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%t.3 = icmp uge i8 %a, 100
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%xor.8 = xor i1 %xor.7, %t.3
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%t.4 = icmp uge i8 %b, 100
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%xor.9 = xor i1 %xor.8, %t.4
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%t.5 = icmp ugt i8 %a, 99
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%xor.10 = xor i1 %xor.9, %t.5
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%c.3 = icmp ult i8 %a, 99
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%xor.11 = xor i1 %xor.10, %c.3
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%c.4 = icmp ugt i8 %a, 98
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%xor.12 = xor i1 %xor.11, %c.4
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ret i1 %xor.12
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else:
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%cmp.2 = icmp ult i8 %a, 100
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ret i1 %cmp.2
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}
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define i1 @test_eq_ult_and(i8 %a, i8 %b) {
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; CHECK-LABEL: @test_eq_ult_and(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: [[PRE_1:%.*]] = icmp eq i8 [[A:%.*]], [[B:%.*]]
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; CHECK-NEXT: [[PRE_2:%.*]] = icmp ult i8 [[B]], 100
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; CHECK-NEXT: [[PRE_AND:%.*]] = and i1 [[PRE_1]], [[PRE_2]]
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; CHECK-NEXT: br i1 [[PRE_AND]], label [[THEN:%.*]], label [[ELSE:%.*]]
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; CHECK: then:
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; CHECK-NEXT: [[T_1:%.*]] = icmp ult i8 [[A]], 100
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; CHECK-NEXT: [[T_2:%.*]] = icmp ult i8 [[B]], 100
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; CHECK-NEXT: [[XOR_1:%.*]] = xor i1 true, true
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; CHECK-NEXT: [[F_1:%.*]] = icmp uge i8 [[A]], 100
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; CHECK-NEXT: [[XOR_2:%.*]] = xor i1 [[XOR_1]], false
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; CHECK-NEXT: [[F_2:%.*]] = icmp uge i8 [[B]], 100
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; CHECK-NEXT: [[XOR_3:%.*]] = xor i1 [[XOR_2]], false
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; CHECK-NEXT: [[F_3_1:%.*]] = icmp ugt i8 [[A]], 99
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; CHECK-NEXT: [[XOR_4:%.*]] = xor i1 [[XOR_3]], false
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; CHECK-NEXT: [[C_1:%.*]] = icmp ult i8 [[A]], 99
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; CHECK-NEXT: [[XOR_5:%.*]] = xor i1 [[XOR_4]], [[C_1]]
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; CHECK-NEXT: [[C_2:%.*]] = icmp ugt i8 [[A]], 98
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; CHECK-NEXT: [[XOR_6:%.*]] = xor i1 [[XOR_5]], [[C_1]]
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; CHECK-NEXT: ret i1 [[XOR_6]]
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; CHECK: else:
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; CHECK-NEXT: [[F_4:%.*]] = icmp ult i8 [[A]], 100
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; CHECK-NEXT: [[F_5:%.*]] = icmp ult i8 [[B]], 100
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; CHECK-NEXT: [[XOR_7:%.*]] = xor i1 [[F_4]], [[F_5]]
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; CHECK-NEXT: [[T_3:%.*]] = icmp uge i8 [[A]], 100
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; CHECK-NEXT: [[XOR_8:%.*]] = xor i1 [[XOR_7]], [[T_3]]
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; CHECK-NEXT: [[T_4:%.*]] = icmp uge i8 [[B]], 100
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; CHECK-NEXT: [[XOR_9:%.*]] = xor i1 [[XOR_8]], [[T_4]]
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; CHECK-NEXT: [[T_5:%.*]] = icmp ugt i8 [[A]], 99
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; CHECK-NEXT: [[XOR_10:%.*]] = xor i1 [[XOR_9]], [[T_5]]
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; CHECK-NEXT: [[C_3:%.*]] = icmp ult i8 [[A]], 99
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; CHECK-NEXT: [[XOR_11:%.*]] = xor i1 [[XOR_10]], [[C_3]]
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; CHECK-NEXT: [[C_4:%.*]] = icmp ugt i8 [[A]], 98
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; CHECK-NEXT: [[XOR_12:%.*]] = xor i1 [[XOR_11]], [[C_4]]
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; CHECK-NEXT: ret i1 [[XOR_12]]
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;
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entry:
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%pre.1 = icmp eq i8 %a, %b
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%pre.2 = icmp ult i8 %b, 100
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%pre.and = and i1 %pre.1, %pre.2
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br i1 %pre.and, label %then, label %else
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then:
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%t.1 = icmp ult i8 %a, 100
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%t.2 = icmp ult i8 %b, 100
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%xor.1 = xor i1 %t.1, %t.2
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%f.1 = icmp uge i8 %a, 100
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%xor.2 = xor i1 %xor.1, %f.1
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%f.2 = icmp uge i8 %b, 100
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%xor.3 = xor i1 %xor.2, %f.2
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%f.3.1 = icmp ugt i8 %a, 99
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%xor.4 = xor i1 %xor.3, %f.3.1
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%c.1 = icmp ult i8 %a, 99
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%xor.5 = xor i1 %xor.4, %c.1
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%c.2 = icmp ugt i8 %a, 98
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%xor.6 = xor i1 %xor.5, %c.1
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ret i1 %xor.6
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else:
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%f.4 = icmp ult i8 %a, 100
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%f.5 = icmp ult i8 %b, 100
|
|
%xor.7 = xor i1 %f.4, %f.5
|
|
|
|
%t.3 = icmp uge i8 %a, 100
|
|
%xor.8 = xor i1 %xor.7, %t.3
|
|
|
|
%t.4 = icmp uge i8 %b, 100
|
|
%xor.9 = xor i1 %xor.8, %t.4
|
|
|
|
%t.5 = icmp ugt i8 %a, 99
|
|
%xor.10 = xor i1 %xor.9, %t.5
|
|
|
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%c.3 = icmp ult i8 %a, 99
|
|
%xor.11 = xor i1 %xor.10, %c.3
|
|
|
|
%c.4 = icmp ugt i8 %a, 98
|
|
%xor.12 = xor i1 %xor.11, %c.4
|
|
|
|
ret i1 %xor.12
|
|
}
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