; NOTE: Assertions have been autogenerated by utils/update_test_checks.py ; RUN: opt < %s -S -passes='move-auto-init' -verify-memoryssa | FileCheck %s target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128" define void @foo(i32 %x) { ; CHECK-LABEL: @foo( ; CHECK-NEXT: entry: ; CHECK-NEXT: [[BUFFER:%.*]] = alloca [80 x i32], align 16 ; CHECK-NEXT: call void @llvm.memset.p0.i64(ptr align 16 [[BUFFER]], i8 -86, i64 320, i1 false), !annotation !0 ; CHECK-NEXT: br label [[DO_BODY:%.*]] ; CHECK: do.body: ; CHECK-NEXT: [[X_ADDR_0:%.*]] = phi i32 [ [[X:%.*]], [[ENTRY:%.*]] ], [ [[DEC:%.*]], [[DO_COND:%.*]] ] ; CHECK-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds [80 x i32], ptr [[BUFFER]], i64 0, i64 0 ; CHECK-NEXT: call void @dump(ptr [[ARRAYIDX]]) ; CHECK-NEXT: br label [[DO_COND]] ; CHECK: do.cond: ; CHECK-NEXT: [[DEC]] = add nsw i32 [[X_ADDR_0]], -1 ; CHECK-NEXT: [[TOBOOL:%.*]] = icmp ne i32 [[X_ADDR_0]], 0 ; CHECK-NEXT: br i1 [[TOBOOL]], label [[DO_BODY]], label [[DO_END:%.*]] ; CHECK: do.end: ; CHECK-NEXT: ret void ; entry: %buffer = alloca [80 x i32], align 16 call void @llvm.memset.p0.i64(ptr align 16 %buffer, i8 -86, i64 320, i1 false), !annotation !0 br label %do.body do.body: ; preds = %do.cond, %entry %x.addr.0 = phi i32 [ %x, %entry ], [ %dec, %do.cond ] %arrayidx = getelementptr inbounds [80 x i32], ptr %buffer, i64 0, i64 0 call void @dump(ptr %arrayidx) br label %do.cond do.cond: ; preds = %do.body %dec = add nsw i32 %x.addr.0, -1 %tobool = icmp ne i32 %x.addr.0, 0 br i1 %tobool, label %do.body, label %do.end do.end: ; preds = %do.cond ret void } declare void @llvm.memset.p0.i64(ptr nocapture writeonly, i8, i64, i1 immarg) declare void @dump(ptr ) define void @bar(i32 %x, i32 %y) { ; CHECK-LABEL: @bar( ; CHECK-NEXT: entry: ; CHECK-NEXT: [[BUFFER:%.*]] = alloca [80 x i32], align 16 ; CHECK-NEXT: [[TOBOOL:%.*]] = icmp ne i32 [[Y:%.*]], 0 ; CHECK-NEXT: br i1 [[TOBOOL]], label [[IF_THEN:%.*]], label [[IF_END:%.*]] ; CHECK: if.then: ; CHECK-NEXT: call void @llvm.memset.p0.i64(ptr align 16 [[BUFFER]], i8 -86, i64 320, i1 false), !annotation !0 ; CHECK-NEXT: [[ADD:%.*]] = add nsw i32 [[X:%.*]], [[Y]] ; CHECK-NEXT: br label [[DO_BODY:%.*]] ; CHECK: do.body: ; CHECK-NEXT: [[X_ADDR_0:%.*]] = phi i32 [ [[ADD]], [[IF_THEN]] ], [ [[DEC:%.*]], [[DO_COND:%.*]] ] ; CHECK-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds [80 x i32], ptr [[BUFFER]], i64 0, i64 0 ; CHECK-NEXT: call void @dump(ptr [[ARRAYIDX]]) ; CHECK-NEXT: br label [[DO_COND]] ; CHECK: do.cond: ; CHECK-NEXT: [[DEC]] = add nsw i32 [[X_ADDR_0]], -1 ; CHECK-NEXT: [[TOBOOL1:%.*]] = icmp ne i32 [[X_ADDR_0]], 0 ; CHECK-NEXT: br i1 [[TOBOOL1]], label [[DO_BODY]], label [[DO_END:%.*]] ; CHECK: do.end: ; CHECK-NEXT: br label [[IF_END]] ; CHECK: if.end: ; CHECK-NEXT: ret void ; entry: %buffer = alloca [80 x i32], align 16 call void @llvm.memset.p0.i64(ptr align 16 %buffer, i8 -86, i64 320, i1 false), !annotation !0 %tobool = icmp ne i32 %y, 0 br i1 %tobool, label %if.then, label %if.end if.then: ; preds = %entry %add = add nsw i32 %x, %y br label %do.body do.body: ; preds = %do.cond, %if.then %x.addr.0 = phi i32 [ %add, %if.then ], [ %dec, %do.cond ] %arrayidx = getelementptr inbounds [80 x i32], ptr %buffer, i64 0, i64 0 call void @dump(ptr %arrayidx) br label %do.cond do.cond: ; preds = %do.body %dec = add nsw i32 %x.addr.0, -1 %tobool1 = icmp ne i32 %x.addr.0, 0 br i1 %tobool1, label %do.body, label %do.end do.end: ; preds = %do.cond br label %if.end if.end: ; preds = %do.end, %entry ret void } !0 = !{!"auto-init"}