1 ; RUN: opt -S < %s -loop-rotate -verify-dom-info -verify-loop-info | FileCheck %s 2 ; PR2624 unroll multiple exits 3 4 @mode_table = global [4 x i32] zeroinitializer ; <[4 x i32]*> [#uses=1] 5 6 ; CHECK: @f 7 ; CHECK-NOT: bb4 8 define i8 @f() { 9 entry: 10 tail call i32 @fegetround( ) ; <i32>:0 [#uses=1] 11 br label %bb 12 13 bb: ; preds = %bb4, %entry 14 %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]* @mode_table, i32 0, i32 %1 ; <i32*>:2 [#uses=1] 17 load i32* %2, align 4 ; <i32>:3 [#uses=1] 18 icmp eq i32 %3, %0 ; <i1>:4 [#uses=1] 19 br i1 %4, label %bb1, label %bb2 20 21 bb1: ; preds = %bb 22 ret i8 %mode.0 23 24 bb2: ; preds = %bb 25 icmp eq i8 %mode.0, 1 ; <i1>:5 [#uses=1] 26 br i1 %5, label %bb5, label %bb4 27 28 bb4: ; preds = %bb2 29 %indvar.next = add i8 %mode.0, 1 ; <i8> [#uses=1] 30 br label %bb 31 32 bb5: ; preds = %bb2 33 tail call void @raise_exception( ) noreturn 34 unreachable 35 } 36 37 declare i32 @fegetround() 38 39 declare void @raise_exception() noreturn 40
