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llvm-mirror/test/CodeGen/X86/unreachable-stack-protector.ll
Nuno Lopes 944814b41a revert my previous patches that introduced an additional parameter to the objectsize intrinsic.
After a lot of discussion, we realized it's not the best option for run-time bounds checking

llvm-svn: 157255
2012-05-22 15:25:31 +00:00

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742 B
LLVM

; RUN: llc < %s -disable-cgp-delete-dead-blocks | FileCheck %s
target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64"
target triple = "x86_64-apple-darwin10.0.0"
declare i64 @llvm.objectsize.i64(i8*, i1) nounwind readnone
define void @test5() nounwind optsize noinline ssp {
entry:
; CHECK: movq ___stack_chk_guard@GOTPCREL(%rip)
%buf = alloca [64 x i8], align 16
%0 = call i64 @llvm.objectsize.i64(i8* undef, i1 false)
br i1 false, label %if.end, label %if.then
if.then: ; preds = %entry
unreachable
if.end: ; preds = %entry
ret void
}