| ; 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 normalize IV if it can't be denormalized to the original |
| ; expression. In this testcase, the normalized expression was denormalized to |
| ; an expression different from the original, and we were losing sign extension. |
| |
| ; CHECK: [[TMP:%[a-z]+]] = trunc i32 {{.*}} to i8 |
| ; CHECK: {{%[a-z0-9]+}} = sext i8 [[TMP]] to i32 |
| |
| @j = common global i32 0, align 4 |
| @c = common global i32 0, align 4 |
| @g = common global i32 0, align 4 |
| @h = common global i8 0, align 1 |
| @d = common global i32 0, align 4 |
| @i = common global i32 0, align 4 |
| @e = common global i32 0, align 4 |
| @.str = private unnamed_addr constant [4 x i8] c"%x\0A\00", align 1 |
| @a = common global i32 0, align 4 |
| @b = common global i16 0, align 2 |
| |
| ; Function Attrs: nounwind optsize ssp uwtable |
| define i32 @main() #0 { |
| entry: |
| store i8 0, i8* @h, align 1 |
| %0 = load i32, i32* @j, align 4 |
| %tobool.i = icmp eq i32 %0, 0 |
| %1 = load i32, i32* @d, align 4 |
| %cmp3 = icmp sgt i32 %1, -1 |
| %.lobit = lshr i32 %1, 31 |
| %.lobit.not = xor i32 %.lobit, 1 |
| br label %for.body |
| |
| for.body: ; preds = %entry, %fn3.exit |
| %inc9 = phi i8 [ 0, %entry ], [ %inc, %fn3.exit ] |
| %conv = sext i8 %inc9 to i32 |
| br i1 %tobool.i, label %fn3.exit, label %land.rhs.i |
| |
| land.rhs.i: ; preds = %for.body |
| store i32 0, i32* @c, align 4 |
| br label %fn3.exit |
| |
| fn3.exit: ; preds = %for.body, %land.rhs.i |
| %inc = add i8 %inc9, 1 |
| %cmp = icmp sgt i8 %inc, -1 |
| br i1 %cmp, label %for.body, label %for.end |
| |
| for.end: ; preds = %fn3.exit |
| %.lobit.not. = select i1 %cmp3, i32 %.lobit.not, i32 0 |
| store i32 %conv, i32* @g, align 4 |
| store i32 %.lobit.not., i32* @i, align 4 |
| store i8 %inc, i8* @h, align 1 |
| %conv7 = sext i8 %inc to i32 |
| %add = add nsw i32 %conv7, %conv |
| store i32 %add, i32* @e, align 4 |
| %call = tail call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i64 0, i64 0), i32 %add) #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 } |
