; REQUIRES: asserts
; RUN: llc < %s -mtriple=x86_64-- | FileCheck %s --check-prefix=ASM
; RUN: llc -debug -o /dev/null < %s -mtriple=x86_64-- 2>&1 | FileCheck %s --check-prefix=DBG
; rdar://8168938
; This testcase involves SCEV normalization with the exit value from
; one loop involved with the increment value for an addrec on another
; loop. The expression should be properly normalized and simplified,
; and require only a single division.
; DBG-NOT: DISCARDING (NORMALIZATION ISN'T INVERTIBLE)
; ASM: div
; ASM-NOT: div
%0 = type { ptr, ptr }
@0 = private constant [13 x i8] c"Result: %lu\0A\00" ; <ptr> [#uses=1]
@1 = internal constant [5 x i8] c"Huh?\00" ; <ptr> [#uses=1]
define i32 @main(i32 %arg, ptr nocapture %arg1) nounwind {
bb:
%tmp = alloca %0, align 8 ; <ptr> [#uses=11]
call void @llvm.memset.p0.i64(ptr align 8 %tmp, i8 0, i64 16, i1 false) nounwind
%tmp3 = getelementptr inbounds %0, ptr %tmp, i64 0, i32 0 ; <ptr> [#uses=3]
store ptr %tmp, ptr %tmp3
%tmp4 = getelementptr inbounds %0, ptr %tmp, i64 0, i32 1 ; <ptr> [#uses=1]
store ptr %tmp, ptr %tmp4
%tmp5 = call noalias ptr @_Znwm(i64 24) nounwind ; <ptr> [#uses=2]
%tmp6 = getelementptr inbounds i8, ptr %tmp5, i64 16 ; <ptr> [#uses=2]
%tmp7 = icmp eq ptr %tmp6, null ; <i1> [#uses=1]
br i1 %tmp7, label %bb10, label %bb8
bb8: ; preds = %bb
store i32 1, ptr %tmp6
br label %bb10
bb10: ; preds = %bb8, %bb
call void @_ZNSt15_List_node_base4hookEPS_(ptr %tmp5, ptr %tmp) nounwind
%tmp12 = load ptr, ptr %tmp3 ; <ptr> [#uses=3]
%tmp13 = icmp eq ptr %tmp12, %tmp ; <i1> [#uses=1]
br i1 %tmp13, label %bb14, label %bb16
bb14: ; preds = %bb10
%tmp15 = call i32 @puts(ptr @1)
br label %bb35
bb16: ; preds = %bb16, %bb10
%tmp17 = phi i64 [ %tmp22, %bb16 ], [ 0, %bb10 ] ; <i64> [#uses=1]
%tmp18 = phi ptr [ %tmp20, %bb16 ], [ %tmp12, %bb10 ] ; <ptr> [#uses=1]
%tmp19 = getelementptr inbounds %0, ptr %tmp18, i64 0, i32 0 ; <ptr> [#uses=1]
%tmp20 = load ptr, ptr %tmp19 ; <ptr> [#uses=2]
%tmp21 = icmp eq ptr %tmp20, %tmp ; <i1> [#uses=1]
%tmp22 = add i64 %tmp17, 1 ; <i64> [#uses=2]
br i1 %tmp21, label %bb23, label %bb16
bb23: ; preds = %bb16
%tmp24 = udiv i64 100, %tmp22 ; <i64> [#uses=1]
br label %bb25
bb25: ; preds = %bb25, %bb23
%tmp26 = phi i64 [ %tmp31, %bb25 ], [ 0, %bb23 ] ; <i64> [#uses=1]
%tmp27 = phi ptr [ %tmp29, %bb25 ], [ %tmp12, %bb23 ] ; <ptr> [#uses=1]
%tmp28 = getelementptr inbounds %0, ptr %tmp27, i64 0, i32 0 ; <ptr> [#uses=1]
%tmp29 = load ptr, ptr %tmp28 ; <ptr> [#uses=2]
%tmp30 = icmp eq ptr %tmp29, %tmp ; <i1> [#uses=1]
%tmp31 = add i64 %tmp26, 1 ; <i64> [#uses=2]
br i1 %tmp30, label %bb32, label %bb25
bb32: ; preds = %bb25
%tmp33 = mul i64 %tmp31, %tmp24 ; <i64> [#uses=1]
%tmp34 = call i32 (ptr, ...) @printf(ptr @0, i64 %tmp33) nounwind
br label %bb35
bb35: ; preds = %bb32, %bb14
%tmp36 = load ptr, ptr %tmp3 ; <ptr> [#uses=2]
%tmp37 = icmp eq ptr %tmp36, %tmp ; <i1> [#uses=1]
br i1 %tmp37, label %bb44, label %bb38
bb38: ; preds = %bb38, %bb35
%tmp39 = phi ptr [ %tmp41, %bb38 ], [ %tmp36, %bb35 ] ; <ptr> [#uses=2]
%tmp40 = getelementptr inbounds %0, ptr %tmp39, i64 0, i32 0 ; <ptr> [#uses=1]
%tmp41 = load ptr, ptr %tmp40 ; <ptr> [#uses=2]
call void @_ZdlPv(ptr %tmp39) nounwind
%tmp43 = icmp eq ptr %tmp41, %tmp ; <i1> [#uses=1]
br i1 %tmp43, label %bb44, label %bb38
bb44: ; preds = %bb38, %bb35
ret i32 0
}
declare i32 @printf(ptr nocapture, ...) nounwind
declare void @_ZNSt15_List_node_base4hookEPS_(ptr, ptr)
declare noalias ptr @_Znwm(i64)
declare void @llvm.memset.p0.i64(ptr nocapture, i8, i64, i1) nounwind
declare void @_ZdlPv(ptr) nounwind
declare i32 @puts(ptr nocapture) nounwind
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