1 ; RUN: llc -march=thumb -mcpu=cortex-a8 < %s 2 ; rdar://problem/10137436: sqlite3 miscompile 3 ; 4 ; CHECK: subs 5 ; CHECK: cmp 6 ; CHECK: it 7 8 target datalayout = "e-p:32:32:32-i1:8:32-i8:8:32-i16:16:32-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:32:64-v128:32:128-a0:0:32-n32" 9 target triple = "thumbv7-apple-ios4.0.0" 10 11 declare i8* @__memset_chk(i8*, i32, i32, i32) nounwind 12 13 define hidden fastcc i32 @sqlite3VdbeExec(i32* %p) nounwind { 14 entry: 15 br label %sqlite3VarintLen.exit7424 16 17 sqlite3VarintLen.exit7424: ; preds = %do.body.i7423 18 br label %do.body.i 19 20 do.body.i: ; preds = %do.body.i, %sqlite3VarintLen.exit7424 21 br i1 undef, label %do.body.i, label %sqlite3VarintLen.exit 22 23 sqlite3VarintLen.exit: ; preds = %do.body.i 24 %sub2322 = add i64 undef, undef 25 br i1 undef, label %too_big, label %if.end2327 26 27 if.end2327: ; preds = %sqlite3VarintLen.exit 28 br i1 undef, label %if.end2341, label %no_mem 29 30 if.end2341: ; preds = %if.end2327 31 br label %for.body2355 32 33 for.body2355: ; preds = %for.body2355, %if.end2341 34 %add2366 = add nsw i32 undef, undef 35 br i1 undef, label %for.body2377, label %for.body2355 36 37 for.body2377: ; preds = %for.body2355 38 %conv23836154 = zext i32 %add2366 to i64 39 %sub2384 = sub i64 %sub2322, %conv23836154 40 %conv2385 = trunc i64 %sub2384 to i32 41 %len.0.i = select i1 undef, i32 %conv2385, i32 undef 42 %sub.i7384 = sub nsw i32 %len.0.i, 0 43 %call.i.i7385 = call i8* @__memset_chk(i8* undef, i32 0, i32 %sub.i7384, i32 undef) nounwind 44 unreachable 45 46 too_big: ; preds = %sqlite3VarintLen.exit 47 unreachable 48 49 no_mem: ; preds = %if.end2327, %for.body, %entry.no_mem_crit_edge 50 unreachable 51 52 sqlite3ErrStr.exit: ; preds = %if.then82 53 unreachable 54 } 55
