76 lines
1.9 KiB
LLVM
76 lines
1.9 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt -passes=constraint-elimination -S %s | FileCheck %s
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define i1 @test_second_and_condition_implied_by_first(i8 %x) {
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; CHECK-LABEL: @test_second_and_condition_implied_by_first(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: [[C_1:%.*]] = icmp ugt i8 [[X:%.*]], 10
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; CHECK-NEXT: [[T_1:%.*]] = icmp ugt i8 [[X]], 5
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; CHECK-NEXT: [[AND:%.*]] = and i1 [[C_1]], [[T_1]]
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; CHECK-NEXT: br i1 [[AND]], label [[THEN:%.*]], label [[ELSE:%.*]]
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; CHECK: then:
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; CHECK-NEXT: ret i1 false
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; CHECK: else:
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; CHECK-NEXT: ret i1 true
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;
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entry:
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%c.1 = icmp ugt i8 %x, 10
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%t.1 = icmp ugt i8 %x, 5
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%and = and i1 %c.1, %t.1
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br i1 %and, label %then, label %else
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then:
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ret i1 0
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else:
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ret i1 1
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}
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define i1 @test_same_cond_for_and(i8 %x) {
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; CHECK-LABEL: @test_same_cond_for_and(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: [[C_1:%.*]] = icmp ugt i8 [[X:%.*]], 10
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; CHECK-NEXT: [[AND:%.*]] = and i1 [[C_1]], [[C_1]]
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; CHECK-NEXT: br i1 [[AND]], label [[THEN:%.*]], label [[ELSE:%.*]]
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; CHECK: then:
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; CHECK-NEXT: ret i1 false
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; CHECK: else:
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; CHECK-NEXT: ret i1 true
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;
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entry:
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%c.1 = icmp ugt i8 %x, 10
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%and = and i1 %c.1, %c.1
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br i1 %and, label %then, label %else
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then:
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ret i1 0
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else:
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ret i1 1
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}
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define i1 @test_second_and_condition_not_implied_by_first(i8 %x) {
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; CHECK-LABEL: @test_second_and_condition_not_implied_by_first(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: [[C_1:%.*]] = icmp ugt i8 [[X:%.*]], 10
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; CHECK-NEXT: [[C_2:%.*]] = icmp ugt i8 [[X]], 5
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; CHECK-NEXT: [[AND:%.*]] = and i1 [[C_2]], [[C_1]]
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; CHECK-NEXT: br i1 [[AND]], label [[THEN:%.*]], label [[ELSE:%.*]]
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; CHECK: then:
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; CHECK-NEXT: ret i1 false
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; CHECK: else:
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; CHECK-NEXT: ret i1 true
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;
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entry:
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%c.1 = icmp ugt i8 %x, 10
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%c.2 = icmp ugt i8 %x, 5
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%and = and i1 %c.2, %c.1
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br i1 %and, label %then, label %else
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then:
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ret i1 0
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else:
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ret i1 1
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}
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