1 ; RUN: opt < %s -loop-reduce -S | grep add | count 2 2 ; PR 2662 3 @g_3 = common global i16 0 ; <i16*> [#uses=2] 4 @"\01LC" = internal constant [4 x i8] c"%d\0A\00" ; <[4 x i8]*> [#uses=1] 5 6 define void @func_1() nounwind { 7 entry: 8 br label %bb 9 10 bb: ; preds = %bb, %entry 11 %l_2.0.reg2mem.0 = phi i16 [ 0, %entry ], [ %t1, %bb ] ; <i16> [#uses=2] 12 %t0 = shl i16 %l_2.0.reg2mem.0, 1 ; <i16>:0 [#uses=1] 13 volatile store i16 %t0, i16* @g_3, align 2 14 %t1 = add i16 %l_2.0.reg2mem.0, -3 ; <i16>:1 [#uses=2] 15 %t2 = icmp slt i16 %t1, 1 ; <i1>:2 [#uses=1] 16 br i1 %t2, label %bb, label %return 17 18 return: ; preds = %bb 19 ret void 20 } 21 22 define i32 @main() nounwind { 23 entry: 24 tail call void @func_1( ) nounwind 25 volatile load i16* @g_3, align 2 ; <i16>:0 [#uses=1] 26 zext i16 %0 to i32 ; <i32>:1 [#uses=1] 27 tail call i32 (i8*, ...)* @printf( i8* getelementptr ([4 x i8]* @"\01LC", i32 0, i32 0), i32 %1 ) nounwind ; <i32>:2 [#uses=0] 28 ret i32 0 29 } 30 31 declare i32 @printf(i8*, ...) nounwind 32
