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
27 lines
793 B
LLVM
27 lines
793 B
LLVM
; RUN: opt -passes=tailcallelim -verify-dom-info -S < %s 2>&1 | FileCheck %s
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; CHECK: add nsw i32
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; CHECK-NEXT: br label
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; CHECK: add nsw i32
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; CHECK-NEXT: br label
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; CHECK-NOT: Uses remain when a value is destroyed
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define i32 @test(i32 %n) {
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entry:
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%cmp = icmp slt i32 %n, 2
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br i1 %cmp, label %if.then, label %if.else
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if.then: ; preds = %entry
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%v1 = add nsw i32 %n, -2
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%call1 = tail call i32 @test(i32 %v1)
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br label %return
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if.else: ; preds = %entry
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%v2 = add nsw i32 %n, 4
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%call2 = tail call i32 @test(i32 %v2)
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br label %return
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return: ; preds = %if.end, %if.else
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%retval = phi i32 [ %call1, %if.then ], [ %call2, %if.else ]
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ret i32 %retval
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}
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