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; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc < %s -mtriple=i686-- | FileCheck %s
; Bug in FindModifiedNodeSlot cause tmp14 load to become a zextload and shr 31
; is then optimized away.
@tree_code_type = external dso_local global [0 x i32] ; <[0 x i32]*> [#uses=1]
define void @copy_if_shared_r() {
; CHECK-LABEL: copy_if_shared_r:
; CHECK: # %bb.0:
; CHECK-NEXT: movl 0, %eax
; CHECK-NEXT: movzbl %al, %ecx
; CHECK-NEXT: movl tree_code_type(,%ecx,4), %ecx
; CHECK-NEXT: decl %ecx
; CHECK-NEXT: cmpl $2, %ecx
; CHECK-NEXT: ja .LBB0_2
; CHECK-NEXT: # %bb.1: # %cond_true
; CHECK-NEXT: shrl $31, %eax
; CHECK-NEXT: testb %al, %al
; CHECK-NEXT: .LBB0_2: # %cond_true17
; CHECK-NEXT: retl
%tmp = load i32, i32* null ; <i32> [#uses=1]
%tmp56 = and i32 %tmp, 255 ; <i32> [#uses=1]
%gep.upgrd.1 = zext i32 %tmp56 to i64 ; <i64> [#uses=1]
%tmp8 = getelementptr [0 x i32], [0 x i32]* @tree_code_type, i32 0, i64 %gep.upgrd.1 ; <i32*> [#uses=1]
%tmp9 = load i32, i32* %tmp8 ; <i32> [#uses=1]
%tmp10 = add i32 %tmp9, -1 ; <i32> [#uses=1]
%tmp.upgrd.2 = icmp ugt i32 %tmp10, 2 ; <i1> [#uses=1]
%tmp14 = load i32, i32* null ; <i32> [#uses=1]
%tmp15 = lshr i32 %tmp14, 31 ; <i32> [#uses=1]
%tmp15.upgrd.3 = trunc i32 %tmp15 to i8 ; <i8> [#uses=1]
%tmp16 = icmp ne i8 %tmp15.upgrd.3, 0 ; <i1> [#uses=1]
br i1 %tmp.upgrd.2, label %cond_false25, label %cond_true
cond_true: ; preds = %0
br i1 %tmp16, label %cond_true17, label %cond_false
cond_true17: ; preds = %cond_true
ret void
cond_false: ; preds = %cond_true
ret void
cond_false25: ; preds = %0
ret void
}
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