1 ; RUN: opt < %s -loop-reduce -S | grep add | count 2 2 ; PR 2662 3 4 ; Provide legal integer types. 5 target datalayout = "n8:16:32:64" 6 7 @g_3 = common global i16 0 ; <i16*> [#uses=2] 8 @"\01LC" = internal constant [4 x i8] c"%d\0A\00" ; <[4 x i8]*> [#uses=1] 9 10 define void @func_1() nounwind { 11 entry: 12 br label %bb 13 14 bb: ; preds = %bb, %entry 15 %l_2.0.reg2mem.0 = phi i16 [ 0, %entry ], [ %t1, %bb ] ; <i16> [#uses=2] 16 %t0 = shl i16 %l_2.0.reg2mem.0, 1 ; <i16>:0 [#uses=1] 17 store volatile i16 %t0, i16* @g_3, align 2 18 %t1 = add i16 %l_2.0.reg2mem.0, -3 ; <i16>:1 [#uses=2] 19 %t2 = icmp slt i16 %t1, 1 ; <i1>:2 [#uses=1] 20 br i1 %t2, label %bb, label %return 21 22 return: ; preds = %bb 23 ret void 24 } 25 26 define i32 @main() nounwind { 27 entry: 28 tail call void @func_1( ) nounwind 29 load volatile i16, i16* @g_3, align 2 ; <i16>:0 [#uses=1] 30 zext i16 %0 to i32 ; <i32>:1 [#uses=1] 31 tail call i32 (i8*, ...) @printf( i8* getelementptr ([4 x i8], [4 x i8]* @"\01LC", i32 0, i32 0), i32 %1 ) nounwind ; <i32>:2 [#uses=0] 32 ret i32 0 33 } 34 35 declare i32 @printf(i8*, ...) nounwind 36
