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Some BBs can become dead after codegen preparation. If we delete them here, it could help enable tail-call optimizations later on. <rdar://problem/10256573> llvm-svn: 152002
20 lines
742 B
LLVM
20 lines
742 B
LLVM
; RUN: llc < %s -disable-cgp-delete-dead-blocks | FileCheck %s
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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"
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target triple = "x86_64-apple-darwin10.0.0"
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declare i64 @llvm.objectsize.i64(i8*, i1) nounwind readnone
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define void @test5() nounwind optsize noinline ssp {
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entry:
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; CHECK: movq ___stack_chk_guard@GOTPCREL(%rip)
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%buf = alloca [64 x i8], align 16
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%0 = call i64 @llvm.objectsize.i64(i8* undef, i1 false)
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br i1 false, label %if.end, label %if.then
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if.then: ; preds = %entry
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unreachable
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if.end: ; preds = %entry
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ret void
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}
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