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182c34b121
testcase require asserts. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153687 91177308-0d34-0410-b5e6-96231b3b80d8
28 lines
948 B
LLVM
28 lines
948 B
LLVM
; RUN: llc -march=x86-64 -mcpu=core2 -enable-misched -misched=shuffle -misched-bottomup < %s
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; REQUIRES: asserts
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;
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; Interesting MachineScheduler cases.
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;
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; FIXME: There should be an assert in the coalescer that we're not rematting
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; "not-quite-dead" copies, but that breaks a lot of tests <rdar://problem/11148682>.
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declare void @llvm.memcpy.p0i8.p0i8.i64(i8* nocapture, i8* nocapture, i64, i32, i1) nounwind
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; From oggenc.
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; After coalescing, we have a dead superreg (RAX) definition.
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;
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; CHECK: xorl %esi, %esi
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; CHECK: movl $32, %ecx
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; CHECK: rep;movsl
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define fastcc void @_preextrapolate_helper() nounwind uwtable ssp {
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entry:
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br i1 undef, label %for.cond.preheader, label %if.end
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for.cond.preheader: ; preds = %entry
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call void @llvm.memcpy.p0i8.p0i8.i64(i8* undef, i8* null, i64 128, i32 4, i1 false) nounwind
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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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