Mercurial > hg > CbC > CbC_llvm
view test/Transforms/SROA/dead-inst.ll @ 146:3fc4d5c3e21e
set tail call flag for code segment in CGCAll
author | Shinji KONO <kono@ie.u-ryukyu.ac.jp> |
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date | Sun, 23 Dec 2018 19:23:36 +0900 |
parents | 3a76565eade5 |
children |
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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)