diff options
Diffstat (limited to 'test/Transforms')
| -rw-r--r-- | test/Transforms/LoopStrengthReduce/pr18165.ll | 88 |
1 files changed, 88 insertions, 0 deletions
diff --git a/test/Transforms/LoopStrengthReduce/pr18165.ll b/test/Transforms/LoopStrengthReduce/pr18165.ll new file mode 100644 index 0000000000..89adef7bd4 --- /dev/null +++ b/test/Transforms/LoopStrengthReduce/pr18165.ll @@ -0,0 +1,88 @@ +; RUN: opt < %s -loop-reduce -S | FileCheck %s +target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:128:128-n8:16:32-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* getelementptr inbounds (%struct.anon* @a, i64 0, i32 0), align 4, !tbaa !1 + %tobool7.i = icmp eq i32 %0, 0 + %.promoted.i = load i32* getelementptr inbounds (%struct.anon* @a, i64 0, i32 2), align 4, !tbaa !6 + %f.promoted.i = load 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* @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* @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* @e, i64 0, i32 1), align 4, !tbaa !8 + store i32 0, i32* @h, align 4, !tbaa !7 + %3 = load i32* @b, align 4, !tbaa !7 + %call1 = tail call i32 (i8*, ...)* @printf(i8* getelementptr inbounds ([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 = metadata !{metadata !"clang version 3.5 "} +!1 = metadata !{metadata !2, metadata !3, i64 0} +!2 = metadata !{metadata !"", metadata !3, i64 0, metadata !3, i64 4, metadata !3, i64 8} +!3 = metadata !{metadata !"int", metadata !4, i64 0} +!4 = metadata !{metadata !"omnipotent char", metadata !5, i64 0} +!5 = metadata !{metadata !"Simple C/C++ TBAA"} +!6 = metadata !{metadata !2, metadata !3, i64 8} +!7 = metadata !{metadata !3, metadata !3, i64 0} +!8 = metadata !{metadata !2, metadata !3, i64 4} |