; RUN: llc %s -o - -verify-machineinstrs | FileCheck %s
target datalayout = "e-m:o-p:32:32-f64:32:64-v64:32:64-v128:32:128-a:0:32-n32-S32"
target triple = "thumbv7s-apple-ios8.0.0"
%struct.cells = type { i32, i32, %struct.cells* }
@reg_len = external global i32, align 4
; The thumb2 size reduction pass commutes arguments to make the first src of an add the same as the dest.
; It needs to also move the internal flag when commuting arguments.
; CHECK-LABEL: @simulate
; Function Attrs: nounwind optsize ssp
define i32 @simulate(i32 %iterations, %struct.cells* nocapture %present, double %prob, i8* nocapture readonly %structure) {
entry:
%0 = load i32, i32* @reg_len, align 4, !tbaa !3
%sub = add nsw i32 %0, -1
%div = sdiv i32 %sub, 31
%rem2 = srem i32 %sub, 31
%cmp35202 = icmp sgt i32 %rem2, 0
br label %for.cond3.preheader
for.cond3.preheader: ; preds = %if.end85, %entry
%call192 = tail call i32 @lrand48() #2
br label %for.cond6.preheader
for.cond34.preheader: ; preds = %for.inc30
br i1 %cmp35202, label %for.body37, label %for.end73
for.cond6.preheader: ; preds = %for.inc30, %for.cond3.preheader
%call197 = phi i32 [ %call, %for.inc30 ], [ %call192, %for.cond3.preheader ]
%i.0196 = phi i32 [ %inc31, %for.inc30 ], [ 0, %for.cond3.preheader ]
%temp.1195 = phi %struct.cells* [ %5, %for.inc30 ], [ %present, %for.cond3.preheader ]
%savefaulty.0194 = phi i32 [ %add12, %for.inc30 ], [ 0, %for.cond3.preheader ]
%savef_free.0193 = phi i32 [ %add11, %for.inc30 ], [ 0, %for.cond3.preheader ]
br label %for.body8
for.body8: ; preds = %for.body8, %for.cond6.preheader
%randv.0190 = phi i32 [ %call197, %for.cond6.preheader ], [ %shr, %for.body8 ]
%j.0189 = phi i32 [ 0, %for.cond6.preheader ], [ %inc, %for.body8 ]
%temp.2188 = phi %struct.cells* [ %temp.1195, %for.cond6.preheader ], [ %5, %for.body8 ]
%savefaulty.1187 = phi i32 [ %savefaulty.0194, %for.cond6.preheader ], [ %add12, %for.body8 ]
%savef_free.1186 = phi i32 [ %savef_free.0193, %for.cond6.preheader ], [ %add11, %for.body8 ]
%f_free = getelementptr inbounds %struct.cells, %struct.cells* %temp.2188, i32 0, i32 0
%1 = load i32, i32* %f_free, align 4, !tbaa !7
%add11 = add nsw i32 %1, %savef_free.1186
%faulty = getelementptr inbounds %struct.cells, %struct.cells* %temp.2188, i32 0, i32 1
%2 = load i32, i32* %faulty, align 4, !tbaa !10
%add12 = add nsw i32 %2, %savefaulty.1187
%next = getelementptr inbounds %struct.cells, %struct.cells* %temp.2188, i32 0, i32 2
%3 = load %struct.cells*, %struct.cells** %next, align 4, !tbaa !11
%f_free13 = getelementptr inbounds %struct.cells, %struct.cells* %3, i32 0, i32 0
%4 = load i32, i32* %f_free13, align 4, !tbaa !7
%add14 = add nsw i32 %4, %randv.0190
%and = and i32 %add14, 1
store i32 %and, i32* %f_free, align 4, !tbaa !7
%call16 = tail call i32 @lrand48() #2
%rem17 = srem i32 %call16, 1000
%conv18 = sitofp i32 %rem17 to double
%div19 = fdiv double %conv18, 1.000000e+03
%cmp20 = fcmp olt double %div19, %prob
%xor = zext i1 %cmp20 to i32
%randv.1 = xor i32 %xor, %randv.0190
%5 = load %struct.cells*, %struct.cells** %next, align 4, !tbaa !11
%faulty25 = getelementptr inbounds %struct.cells, %struct.cells* %5, i32 0, i32 1
%6 = load i32, i32* %faulty25, align 4, !tbaa !10
%add26 = add nsw i32 %randv.1, %6
%and27 = and i32 %add26, 1
store i32 %and27, i32* %faulty, align 4, !tbaa !10
%shr = ashr i32 %randv.0190, 1
%inc = add nuw nsw i32 %j.0189, 1
%exitcond = icmp eq i32 %inc, 31
br i1 %exitcond, label %for.inc30, label %for.body8
for.inc30: ; preds = %for.body8
%inc31 = add nuw nsw i32 %i.0196, 1
%cmp4 = icmp slt i32 %inc31, %div
%call = tail call i32 @lrand48() #2
br i1 %cmp4, label %for.cond6.preheader, label %for.cond34.preheader
for.body37: ; preds = %for.body37, %for.cond34.preheader
%randv.2207 = phi i32 [ %shr70, %for.body37 ], [ %call, %for.cond34.preheader ]
%temp.3205 = phi %struct.cells* [ %9, %for.body37 ], [ %5, %for.cond34.preheader ]
%f_free45 = getelementptr inbounds %struct.cells, %struct.cells* %temp.3205, i32 0, i32 0
%.pre220 = getelementptr inbounds %struct.cells, %struct.cells* %temp.3205, i32 0, i32 1
%next50 = getelementptr inbounds %struct.cells, %struct.cells* %temp.3205, i32 0, i32 2
%7 = load %struct.cells*, %struct.cells** %next50, align 4, !tbaa !11
%f_free51 = getelementptr inbounds %struct.cells, %struct.cells* %7, i32 0, i32 0
%8 = load i32, i32* %f_free51, align 4, !tbaa !7
%add52 = add nsw i32 %8, %randv.2207
%and53 = and i32 %add52, 1
store i32 %and53, i32* %f_free45, align 4, !tbaa !7
%call55 = tail call i32 @lrand48() #2
%rem56 = srem i32 %call55, 1000
%conv57 = sitofp i32 %rem56 to double
%div58 = fdiv double %conv57, 1.000000e+03
%cmp59 = fcmp olt double %div58, %prob
%xor62 = zext i1 %cmp59 to i32
%randv.3 = xor i32 %xor62, %randv.2207
%9 = load %struct.cells*, %struct.cells** %next50, align 4, !tbaa !11
%faulty65 = getelementptr inbounds %struct.cells, %struct.cells* %9, i32 0, i32 1
%10 = load i32, i32* %faulty65, align 4, !tbaa !10
%add66 = add nsw i32 %randv.3, %10
%and67 = and i32 %add66, 1
store i32 %and67, i32* %.pre220, align 4, !tbaa !10
%shr70 = ashr i32 %randv.2207, 1
br label %for.body37
for.end73: ; preds = %for.cond34.preheader
%call74 = tail call i32 @lrand48() #2
%11 = load i32, i32* @reg_len, align 4, !tbaa !3
%sub75 = add nsw i32 %11, -1
%arrayidx76 = getelementptr inbounds i8, i8* %structure, i32 %sub75
%12 = load i8, i8* %arrayidx76, align 1, !tbaa !12
%cmp78 = icmp eq i8 %12, 49
%f_free81 = getelementptr inbounds %struct.cells, %struct.cells* %5, i32 0, i32 0
br i1 %cmp78, label %if.then80, label %for.end73.if.end85_crit_edge
for.end73.if.end85_crit_edge: ; preds = %for.end73
%.pre222 = getelementptr inbounds %struct.cells, %struct.cells* %5, i32 0, i32 1
br label %if.end85
if.then80: ; preds = %for.end73
%13 = load i32, i32* %f_free81, align 4, !tbaa !7
%add82 = add nsw i32 %13, %add11
%faulty83 = getelementptr inbounds %struct.cells, %struct.cells* %5, i32 0, i32 1
%14 = load i32, i32* %faulty83, align 4, !tbaa !10
%add84 = add nsw i32 %14, %add12
br label %if.end85
if.end85: ; preds = %if.then80, %for.end73.if.end85_crit_edge
%faulty100.pre-phi = phi i32* [ %.pre222, %for.end73.if.end85_crit_edge ], [ %faulty83, %if.then80 ]
%savef_free.5 = phi i32 [ %add11, %for.end73.if.end85_crit_edge ], [ %add82, %if.then80 ]
%savefaulty.5 = phi i32 [ %add12, %for.end73.if.end85_crit_edge ], [ %add84, %if.then80 ]
%add86 = add nsw i32 %savef_free.5, %call74
%and87 = and i32 %add86, 1
store i32 %and87, i32* %f_free81, align 4, !tbaa !7
%call89 = tail call i32 @lrand48() #2
%rem90 = srem i32 %call89, 10000
%conv91 = sitofp i32 %rem90 to double
%div92 = fdiv double %conv91, 1.000000e+04
%cmp93 = fcmp olt double %div92, %prob
%xor96 = zext i1 %cmp93 to i32
%randv.4 = xor i32 %xor96, %call74
%add98 = add nsw i32 %randv.4, %savefaulty.5
%and99 = and i32 %add98, 1
store i32 %and99, i32* %faulty100.pre-phi, align 4, !tbaa !10
br label %for.cond3.preheader
}
; Function Attrs: optsize
declare i32 @lrand48()
attributes #2 = { nounwind optsize }
!llvm.module.flags = !{!0, !1}
!llvm.ident = !{!2}
!0 = !{i32 1, !"wchar_size", i32 4}
!1 = !{i32 1, !"min_enum_size", i32 4}
!2 = !{!"clang version 3.7.0 (trunk 236243)"}
!3 = !{!4, !4, i64 0}
!4 = !{!"int", !5, i64 0}
!5 = !{!"omnipotent char", !6, i64 0}
!6 = !{!"Simple C/C++ TBAA"}
!7 = !{!8, !4, i64 0}
!8 = !{!"cells", !4, i64 0, !4, i64 4, !9, i64 8}
!9 = !{!"any pointer", !5, i64 0}
!10 = !{!8, !4, i64 4}
!11 = !{!8, !9, i64 8}
!12 = !{!5, !5, i64 0}