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53aeb9f663
Modified ARMISelLowering::AdjustInstrPostInstrSelection to handle the full gamut of CPSR defs/uses including instructins whose "optional" cc_out operand is not really optional. This allowed removal of the hasPostISelHook to simplify the .td files and make the implementation more robust. Fixes rdar://10137436: sqlite3 miscompile llvm-svn: 140134
55 lines
2.0 KiB
LLVM
55 lines
2.0 KiB
LLVM
; RUN: llc -march=thumb -mcpu=cortex-a8 < %s
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; rdar://problem/10137436: sqlite3 miscompile
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;
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; CHECK: subs
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; CHECK: cmp
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; CHECK: it
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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"
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target triple = "thumbv7-apple-ios4.0.0"
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declare i8* @__memset_chk(i8*, i32, i32, i32) nounwind
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define hidden fastcc i32 @sqlite3VdbeExec(i32* %p) nounwind {
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entry:
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br label %sqlite3VarintLen.exit7424
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sqlite3VarintLen.exit7424: ; preds = %do.body.i7423
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br label %do.body.i
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do.body.i: ; preds = %do.body.i, %sqlite3VarintLen.exit7424
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br i1 undef, label %do.body.i, label %sqlite3VarintLen.exit
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sqlite3VarintLen.exit: ; preds = %do.body.i
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%sub2322 = add i64 undef, undef
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br i1 undef, label %too_big, label %if.end2327
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if.end2327: ; preds = %sqlite3VarintLen.exit
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br i1 undef, label %if.end2341, label %no_mem
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if.end2341: ; preds = %if.end2327
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br label %for.body2355
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for.body2355: ; preds = %for.body2355, %if.end2341
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%add2366 = add nsw i32 undef, undef
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br i1 undef, label %for.body2377, label %for.body2355
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for.body2377: ; preds = %for.body2355
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%conv23836154 = zext i32 %add2366 to i64
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%sub2384 = sub i64 %sub2322, %conv23836154
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%conv2385 = trunc i64 %sub2384 to i32
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%len.0.i = select i1 undef, i32 %conv2385, i32 undef
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%sub.i7384 = sub nsw i32 %len.0.i, 0
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%call.i.i7385 = call i8* @__memset_chk(i8* undef, i32 0, i32 %sub.i7384, i32 undef) nounwind
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unreachable
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too_big: ; preds = %sqlite3VarintLen.exit
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unreachable
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no_mem: ; preds = %if.end2327, %for.body, %entry.no_mem_crit_edge
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unreachable
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sqlite3ErrStr.exit: ; preds = %if.then82
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unreachable
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}
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