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| ; SROA fails to rewrite allocs but does rewrite some phis and delete
; dead instructions. Ensure that this invalidates analyses required
; for other passes.
; RUN: opt < %s -passes=bdce,sroa,bdce -o %t -debug-pass-manager 2>&1 | FileCheck %s
; CHECK: Running pass: BDCEPass on H
; CHECK: Running analysis: DemandedBitsAnalysis on H
; CHECK: Running pass: SROA on H
; CHECK: Invalidating all non-preserved analyses for: H
; CHECK: Invalidating analysis: DemandedBitsAnalysis on H
; CHECK: Running pass: BDCEPass on H
; CHECK: Running analysis: DemandedBitsAnalysis on H
; CHECK: Finished llvm::Function pass manager run.
target datalayout = "e-m:e-i64:64-n32:64"
target triple = "powerpc64le-grtev4-linux-gnu"
%class.b = type { i64 }
declare void @D(%class.b* sret, %class.b* dereferenceable(32)) local_unnamed_addr
; Function Attrs: nounwind
define hidden fastcc void @H(%class.b* noalias nocapture readnone, [2 x i64]) unnamed_addr {
%3 = alloca %class.b, align 8
%.sroa.0 = alloca i64, align 8
store i64 0, i64* %.sroa.0, align 8
%4 = extractvalue [2 x i64] %1, 1
switch i64 %4, label %6 [
i64 4, label %foo
i64 5, label %5
]
; <label>:5:
%.sroa.0.0..sroa_cast3 = bitcast i64* %.sroa.0 to i8**
br label %12
; <label>:6:
%7 = icmp ugt i64 %4, 5
%.sroa.0.0..sroa_cast5 = bitcast i64* %.sroa.0 to i8**
br i1 %7, label %8, label %12
; <label>:8:
%9 = load i8, i8* inttoptr (i64 4 to i8*), align 4
%10 = icmp eq i8 %9, 47
%11 = select i1 %10, i64 5, i64 4
br label %12
; <label>:12:
%13 = phi i8** [ %.sroa.0.0..sroa_cast3, %5 ], [ %.sroa.0.0..sroa_cast5, %8 ], [ %.sroa.0.0..sroa_cast5, %6 ]
%14 = phi i64 [ 4, %5 ], [ %11, %8 ], [ 4, %6 ]
%15 = icmp ne i64 %4, 0
%16 = icmp ugt i64 %4, %14
%17 = and i1 %15, %16
br i1 %17, label %18, label %a.exit
; <label>:18:
%19 = tail call i8* @memchr(i8* undef, i32 signext undef, i64 undef)
%20 = icmp eq i8* %19, null
%21 = sext i1 %20 to i64
br label %a.exit
a.exit:
%22 = phi i64 [ -1, %12 ], [ %21, %18 ]
%23 = load i8*, i8** %13, align 8
%24 = sub nsw i64 %22, %14
%25 = bitcast %class.b* %3 to i8*
call void @llvm.lifetime.start.p0i8(i64 32, i8* nonnull %25)
%26 = icmp ult i64 %24, 2
br i1 %26, label %G.exit, label %27
; <label>:27:
%28 = getelementptr inbounds i8, i8* %23, i64 undef
%29 = icmp eq i8* %28, null
br i1 %29, label %30, label %31
; <label>:30:
unreachable
; <label>:31:
call void @D(%class.b* nonnull sret %3, %class.b* nonnull dereferenceable(32) undef)
br label %G.exit
G.exit:
call void @llvm.lifetime.end.p0i8(i64 32, i8* nonnull %25)
br label %foo
foo:
ret void
}
; Function Attrs: nounwind readonly
declare i8* @memchr(i8*, i32 signext, i64) local_unnamed_addr
; Function Attrs: argmemonly nounwind
declare void @llvm.lifetime.start.p0i8(i64, i8* nocapture)
; Function Attrs: argmemonly nounwind
declare void @llvm.lifetime.end.p0i8(i64, i8* nocapture)
|