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1; RUN: opt -S < %s -passes='loop-mssa(loop-rotate,licm)' -verify-dom-info -verify-loop-info | FileCheck %s2; PR2624 unroll multiple exits3 4@mode_table = global [4 x i32] zeroinitializer ; <ptr> [#uses=1]5 6; CHECK-LABEL: @f(7; CHECK-NOT: bb:8define i8 @f() {9entry:10 tail call i32 @fegetround( ) ; <i32>:0 [#uses=1]11 br label %bb12 13bb: ; preds = %bb4, %entry14 %mode.0 = phi i8 [ 0, %entry ], [ %indvar.next, %bb4 ] ; <i8> [#uses=4]15 zext i8 %mode.0 to i32 ; <i32>:1 [#uses=1]16 getelementptr [4 x i32], ptr @mode_table, i32 0, i32 %1 ; <ptr>:2 [#uses=1]17 load i32, ptr %2, align 4 ; <i32>:3 [#uses=1]18 icmp eq i32 %3, %0 ; <i1>:4 [#uses=1]19 br i1 %4, label %bb1, label %bb220 21bb1: ; preds = %bb22 ret i8 %mode.023 24bb2: ; preds = %bb25 icmp eq i8 %mode.0, 1 ; <i1>:5 [#uses=1]26 br i1 %5, label %bb5, label %bb427 28bb4: ; preds = %bb229 %indvar.next = add i8 %mode.0, 1 ; <i8> [#uses=1]30 br label %bb31 32bb5: ; preds = %bb233 tail call void @raise_exception( ) noreturn34 unreachable35}36 37declare i32 @fegetround()38 39declare void @raise_exception() noreturn40 41;CHECK: for.body.lr.ph:42;CHECK-NEXT: %0 = load i8, ptr %CurPtr, align 143;CHECK-NEXT: %conv2 = sext i8 %0 to i3244;CHECK-NEXT: br label %for.body45 46define i32 @foo(ptr %CurPtr, i32 %a) #0 {47entry:48 br label %for.cond49 50for.cond: ; preds = %for.inc, %entry51 %i.0 = phi i32 [ 1, %entry ], [ %inc, %for.inc ]52 %cmp = icmp ne i32 %i.0, %a53 br i1 %cmp, label %for.body, label %return54 55for.body: ; preds = %for.cond56 %idxprom = zext i32 %i.0 to i6457 %arrayidx = getelementptr inbounds i8, ptr %CurPtr, i64 %idxprom58 %0 = load i8, ptr %arrayidx, align 159 %conv = sext i8 %0 to i3260 %1 = load i8, ptr %CurPtr, align 161 %conv2 = sext i8 %1 to i3262 %cmp3 = icmp ne i32 %conv, %conv263 br i1 %cmp3, label %return, label %for.inc64 65for.inc: ; preds = %for.body66 %inc = add i32 %i.0, 167 br label %for.cond68 69return: ; preds = %for.cond, %for.body70 %retval.0 = phi i32 [ 0, %for.body ], [ 1, %for.cond ]71 ret i32 %retval.072}73 74attributes #0 = { nounwind uwtable }75