| Eric Christopher | cee313d | 2019-04-17 04:52:47 +0000 | [diff] [blame] | 1 | ; RUN: opt < %s -loop-reduce -S | grep phi | count 2 |
| 2 | ; PR 2779 |
| 3 | |
| 4 | ; Provide legal integer types. |
| 5 | target datalayout = "n8:16:32:64" |
| 6 | |
| 7 | @g_19 = common global i32 0 ; <i32*> [#uses=3] |
| 8 | @"\01LC" = internal constant [4 x i8] c"%d\0A\00" ; <[4 x i8]*> [#uses=1] |
| 9 | |
| 10 | define i32 @func_8(i8 zeroext %p_9) nounwind { |
| 11 | entry: |
| 12 | ret i32 1 |
| 13 | } |
| 14 | |
| 15 | define i32 @func_3(i8 signext %p_5) nounwind { |
| 16 | entry: |
| 17 | ret i32 1 |
| 18 | } |
| 19 | |
| 20 | define void @func_1() nounwind { |
| 21 | entry: |
| 22 | br label %bb |
| 23 | |
| 24 | bb: ; preds = %bb, %entry |
| 25 | %indvar = phi i16 [ 0, %entry ], [ %indvar.next, %bb ] ; <i16> [#uses=2] |
| 26 | %tmp = sub i16 0, %indvar ; <i16> [#uses=1] |
| 27 | %tmp27 = trunc i16 %tmp to i8 ; <i8> [#uses=1] |
| 28 | load i32, i32* @g_19, align 4 ; <i32>:0 [#uses=2] |
| 29 | add i32 %0, 1 ; <i32>:1 [#uses=1] |
| 30 | store i32 %1, i32* @g_19, align 4 |
| 31 | trunc i32 %0 to i8 ; <i8>:2 [#uses=1] |
| 32 | tail call i32 @func_8( i8 zeroext %2 ) nounwind ; <i32>:3 [#uses=0] |
| 33 | shl i8 %tmp27, 2 ; <i8>:4 [#uses=1] |
| 34 | add i8 %4, -112 ; <i8>:5 [#uses=1] |
| 35 | tail call i32 @func_3( i8 signext %5 ) nounwind ; <i32>:6 [#uses=0] |
| 36 | %indvar.next = add i16 %indvar, 1 ; <i16> [#uses=2] |
| 37 | %exitcond = icmp eq i16 %indvar.next, -28 ; <i1> [#uses=1] |
| 38 | br i1 %exitcond, label %return, label %bb |
| 39 | |
| 40 | return: ; preds = %bb |
| 41 | ret void |
| 42 | } |
| 43 | |
| 44 | define i32 @main() nounwind { |
| 45 | entry: |
| 46 | tail call void @func_1( ) nounwind |
| 47 | load i32, i32* @g_19, align 4 ; <i32>:0 [#uses=1] |
| 48 | tail call i32 (i8*, ...) @printf( i8* getelementptr ([4 x i8], [4 x i8]* @"\01LC", i32 0, i32 0), i32 %0 ) nounwind ; <i32>:1 [#uses=0] |
| 49 | ret i32 0 |
| 50 | } |
| 51 | |
| 52 | declare i32 @printf(i8*, ...) nounwind |