8ebb3eac02
The legacy PM is deprecated, so update a bunch of lit tests running opt to use the new PM syntax when specifying the pipeline. In this patch focus has been put on test cases for ConstantMerge, ConstraintElimination, CorrelatedValuePropagation, GlobalDCE, GlobalOpt, SCCP, TailCallElim and PredicateInfo. Differential Revision: https://reviews.llvm.org/D114516
40 lines
1.0 KiB
LLVM
40 lines
1.0 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt < %s -passes=sccp -S | FileCheck %s
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; Test some XOR simplifications / range propagation.
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define void@xor1(i1 %cmp) {
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; CHECK-LABEL: @xor1(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: br i1 [[CMP:%.*]], label [[IF_TRUE:%.*]], label [[END:%.*]]
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; CHECK: if.true:
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; CHECK-NEXT: br label [[END]]
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; CHECK: end:
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; CHECK-NEXT: call void @use(i1 true)
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; CHECK-NEXT: call void @use(i1 false)
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; CHECK-NEXT: call void @use(i1 false)
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; CHECK-NEXT: call void @use(i1 true)
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; CHECK-NEXT: ret void
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;
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entry:
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br i1 %cmp, label %if.true, label %end
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if.true:
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br label %end
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end:
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%p = phi i32 [ 11, %entry ], [ 11, %if.true]
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%xor.1 = xor i32 %p, %p
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%c.1 = icmp eq i32 %xor.1, 0
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call void @use(i1 %c.1)
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%c.2 = icmp eq i32 %xor.1, 10
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call void @use(i1 %c.2)
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%xor.2 = xor i32 %p, 1
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%c.3 = icmp eq i32 %xor.2, 11
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call void @use(i1 %c.3)
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%c.4 = icmp eq i32 %xor.2, 10
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call void @use(i1 %c.4)
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ret void
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}
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declare void @use(i1)
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