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
50 lines
1.9 KiB
LLVM
50 lines
1.9 KiB
LLVM
; RUN: opt -S -passes=correlated-propagation -debug-only=lazy-value-info <%s 2>&1 | FileCheck %s
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; REQUIRES: asserts
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;
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; Shortcut in Correlated Value Propagation ensures not to take Lazy Value Info
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; analysis for %a.i and %tmp because %a.i is defined by alloca and %tmp is
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; defined by alloca + bitcast. We know the ret value of alloca is nonnull.
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;
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; CHECK-NOT: LVI Getting edge value %a.i = alloca i64, align 8 at 'for.body'
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; CHECK-NOT: LVI Getting edge value %tmp = bitcast i64* %a.i to i8* from 'for.cond' to 'for.body'
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target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
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target triple = "x86_64-unknown-linux-gnu"
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@.str = private unnamed_addr constant [8 x i8] c"a = %l\0A\00", align 1
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; Function Attrs: argmemonly nounwind
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declare void @llvm.lifetime.start.p0i8(i64, i8* nocapture)
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declare void @hoo(i64*)
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declare i32 @printf(i8* nocapture readonly, ...)
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; Function Attrs: argmemonly nounwind
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declare void @llvm.lifetime.end.p0i8(i64, i8* nocapture)
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define void @goo(i32 %N, i64* %b) {
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entry:
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%a.i = alloca i64, align 8
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%tmp = bitcast i64* %a.i to i8*
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%c = getelementptr inbounds i64, i64* %b, i64 0
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br label %for.cond
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for.cond: ; preds = %for.body, %entry
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%i.0 = phi i32 [ 0, %entry ], [ %inc, %for.body ]
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%cmp = icmp slt i32 %i.0, %N
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br i1 %cmp, label %for.body, label %for.end
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for.body: ; preds = %for.cond
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call void @llvm.lifetime.start.p0i8(i64 8, i8* %tmp)
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call void @hoo(i64* %a.i)
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call void @hoo(i64* %c)
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%tmp1 = load volatile i64, i64* %a.i, align 8
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%call.i = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([8 x i8], [8 x i8]* @.str, i64 0, i64 0), i64 %tmp1)
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call void @llvm.lifetime.end.p0i8(i64 8, i8* %tmp)
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%inc = add nsw i32 %i.0, 1
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br label %for.cond
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for.end: ; preds = %for.cond
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ret void
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}
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