| ; RUN: llc -O1 <%s |
| ; PR12138 |
| 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 = "i386-apple-macosx10.7.0" |
| |
| %struct.S0 = type { i8, i32 } |
| |
| @d = external global [2 x [2 x %struct.S0]], align 4 |
| @c = external global i32, align 4 |
| @e = external global i32, align 4 |
| @b = external global i32, align 4 |
| @a = external global i32, align 4 |
| |
| define void @fn2() nounwind optsize ssp { |
| entry: |
| store i64 0, i64* bitcast ([2 x [2 x %struct.S0]]* @d to i64*), align 4 |
| %0 = load i32, i32* @c, align 4 |
| %tobool2 = icmp eq i32 %0, 0 |
| %1 = load i32, i32* @a, align 4 |
| %tobool4 = icmp eq i32 %1, 0 |
| br label %for.cond |
| |
| for.cond: ; preds = %if.end, %entry |
| %f.1.0 = phi i32 [ undef, %entry ], [ %sub, %if.end ] |
| %g.0 = phi i64 [ 0, %entry ], [ %ins, %if.end ] |
| %tobool = icmp eq i32 %f.1.0, 0 |
| br i1 %tobool, label %for.end, label %for.body |
| |
| for.body: ; preds = %for.cond |
| %2 = lshr i64 %g.0, 32 |
| %conv = trunc i64 %2 to i16 |
| br i1 %tobool2, label %lor.rhs, label %lor.end |
| |
| lor.rhs: ; preds = %for.body |
| store i32 1, i32* @e, align 4 |
| br label %lor.end |
| |
| lor.end: ; preds = %lor.rhs, %for.body |
| %xor.i = xor i16 %conv, 1 |
| %p1.lobit.i8 = lshr i64 %g.0, 47 |
| %p1.lobit.i8.tr = trunc i64 %p1.lobit.i8 to i16 |
| %p1.lobit.i = and i16 %p1.lobit.i8.tr, 1 |
| %and.i = and i16 %p1.lobit.i, %xor.i |
| %3 = xor i16 %and.i, 1 |
| %sub.conv.i = sub i16 %conv, %3 |
| %conv3 = sext i16 %sub.conv.i to i32 |
| store i32 %conv3, i32* @b, align 4 |
| br i1 %tobool4, label %if.end, label %for.end |
| |
| if.end: ; preds = %lor.end |
| %mask = and i64 %g.0, -256 |
| %ins = or i64 %mask, 1 |
| %sub = add nsw i32 %f.1.0, -1 |
| br label %for.cond |
| |
| for.end: ; preds = %lor.end, %for.cond |
| ret void |
| } |
