revert a hunk of r82018 that wasn't supposed to go in yet.
[llvm/avr.git] / test / CodeGen / X86 / 2006-10-10-FindModifiedNodeSlotBug.ll
blobb1f04518acaab29171f2e39ea61eb44a4ec248d9
1 ; RUN: llc < %s -march=x86 | grep shrl
2 ; Bug in FindModifiedNodeSlot cause tmp14 load to become a zextload and shr 31
3 ; is then optimized away.
4 @tree_code_type = external global [0 x i32]             ; <[0 x i32]*> [#uses=1]
6 define void @copy_if_shared_r() {
7         %tmp = load i32* null           ; <i32> [#uses=1]
8         %tmp56 = and i32 %tmp, 255              ; <i32> [#uses=1]
9         %gep.upgrd.1 = zext i32 %tmp56 to i64           ; <i64> [#uses=1]
10         %tmp8 = getelementptr [0 x i32]* @tree_code_type, i32 0, i64 %gep.upgrd.1       ; <i32*> [#uses=1]
11         %tmp9 = load i32* %tmp8         ; <i32> [#uses=1]
12         %tmp10 = add i32 %tmp9, -1              ; <i32> [#uses=1]
13         %tmp.upgrd.2 = icmp ugt i32 %tmp10, 2           ; <i1> [#uses=1]
14         %tmp14 = load i32* null         ; <i32> [#uses=1]
15         %tmp15 = lshr i32 %tmp14, 31            ; <i32> [#uses=1]
16         %tmp15.upgrd.3 = trunc i32 %tmp15 to i8         ; <i8> [#uses=1]
17         %tmp16 = icmp ne i8 %tmp15.upgrd.3, 0           ; <i1> [#uses=1]
18         br i1 %tmp.upgrd.2, label %cond_false25, label %cond_true
19 cond_true:              ; preds = %0
20         br i1 %tmp16, label %cond_true17, label %cond_false
21 cond_true17:            ; preds = %cond_true
22         ret void
23 cond_false:             ; preds = %cond_true
24         ret void
25 cond_false25:           ; preds = %0
26         ret void