| ; RUN: opt < %s -loop-reduce -S | FileCheck %s |
| target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128" |
| target triple = "x86_64-apple-macosx10.9.0" |
| |
| ; LSR shouldn't reuse IV if the resultant offset is not valid for the operand type. |
| ; CHECK-NOT: trunc i32 %.ph to i8 |
| |
| %struct.anon = type { i32, i32, i32 } |
| |
| @c = global i32 1, align 4 |
| @.str = private unnamed_addr constant [4 x i8] c"%d\0A\00", align 1 |
| @b = common global i32 0, align 4 |
| @a = common global %struct.anon zeroinitializer, align 4 |
| @e = common global %struct.anon zeroinitializer, align 4 |
| @d = common global i32 0, align 4 |
| @f = common global i32 0, align 4 |
| @g = common global i32 0, align 4 |
| @h = common global i32 0, align 4 |
| |
| ; Function Attrs: nounwind optsize ssp uwtable |
| define i32 @main() #0 { |
| entry: |
| %0 = load i32, i32* getelementptr inbounds (%struct.anon, %struct.anon* @a, i64 0, i32 0), align 4, !tbaa !1 |
| %tobool7.i = icmp eq i32 %0, 0 |
| %.promoted.i = load i32, i32* getelementptr inbounds (%struct.anon, %struct.anon* @a, i64 0, i32 2), align 4, !tbaa !6 |
| %f.promoted.i = load i32, i32* @f, align 4, !tbaa !7 |
| br label %for.body6.i.outer |
| |
| for.body6.i.outer: ; preds = %entry, %lor.end.i |
| %.ph = phi i32 [ %add.i, %lor.end.i ], [ 0, %entry ] |
| %or1512.i.ph = phi i32 [ %or15.i, %lor.end.i ], [ %f.promoted.i, %entry ] |
| %or1410.i.ph = phi i32 [ %or14.i, %lor.end.i ], [ %.promoted.i, %entry ] |
| %p.addr.16.i.ph = phi i8 [ %inc10.i, %lor.end.i ], [ -128, %entry ] |
| br i1 %tobool7.i, label %if.end9.i, label %lbl.loopexit.i |
| |
| lbl.loopexit.i: ; preds = %for.body6.i.outer, %lbl.loopexit.i |
| br label %lbl.loopexit.i |
| |
| if.end9.i: ; preds = %for.body6.i.outer |
| %inc10.i = add i8 %p.addr.16.i.ph, 1 |
| %tobool12.i = icmp eq i8 %p.addr.16.i.ph, 0 |
| br i1 %tobool12.i, label %lor.rhs.i, label %lor.end.i |
| |
| lor.rhs.i: ; preds = %if.end9.i |
| %1 = load i32, i32* @b, align 4, !tbaa !7 |
| %dec.i = add nsw i32 %1, -1 |
| store i32 %dec.i, i32* @b, align 4, !tbaa !7 |
| %tobool13.i = icmp ne i32 %1, 0 |
| br label %lor.end.i |
| |
| lor.end.i: ; preds = %lor.rhs.i, %if.end9.i |
| %2 = phi i1 [ true, %if.end9.i ], [ %tobool13.i, %lor.rhs.i ] |
| %lor.ext.i = zext i1 %2 to i32 |
| %or14.i = or i32 %lor.ext.i, %or1410.i.ph |
| %or15.i = or i32 %or14.i, %or1512.i.ph |
| %add.i = add nsw i32 %.ph, 2 |
| %cmp.i = icmp slt i32 %add.i, 21 |
| br i1 %cmp.i, label %for.body6.i.outer, label %fn1.exit |
| |
| fn1.exit: ; preds = %lor.end.i |
| store i32 0, i32* @g, align 4, !tbaa !7 |
| store i32 %or14.i, i32* getelementptr inbounds (%struct.anon, %struct.anon* @a, i64 0, i32 2), align 4, !tbaa !6 |
| store i32 %or15.i, i32* @f, align 4, !tbaa !7 |
| store i32 %add.i, i32* getelementptr inbounds (%struct.anon, %struct.anon* @e, i64 0, i32 1), align 4, !tbaa !8 |
| store i32 0, i32* @h, align 4, !tbaa !7 |
| %3 = load i32, i32* @b, align 4, !tbaa !7 |
| %call1 = tail call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i64 0, i64 0), i32 %3) #2 |
| ret i32 0 |
| } |
| |
| ; Function Attrs: nounwind optsize |
| declare i32 @printf(i8* nocapture readonly, ...) #1 |
| |
| attributes #0 = { nounwind optsize ssp uwtable "less-precise-fpmad"="false" "no-frame-pointer-elim"="true" "no-frame-pointer-elim-non-leaf" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" } |
| attributes #1 = { nounwind optsize "less-precise-fpmad"="false" "no-frame-pointer-elim"="true" "no-frame-pointer-elim-non-leaf" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" } |
| attributes #2 = { nounwind optsize } |
| |
| !llvm.ident = !{!0} |
| |
| !0 = !{!"clang version 3.5 "} |
| !1 = !{!2, !3, i64 0} |
| !2 = !{!"", !3, i64 0, !3, i64 4, !3, i64 8} |
| !3 = !{!"int", !4, i64 0} |
| !4 = !{!"omnipotent char", !5, i64 0} |
| !5 = !{!"Simple C/C++ TBAA"} |
| !6 = !{!2, !3, i64 8} |
| !7 = !{!3, !3, i64 0} |
| !8 = !{!2, !3, i64 4} |