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Fix a coalescer bug wrt how dead copy interval is shortened.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47966 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Evan Cheng
2008-03-05 22:09:42 +00:00
parent c5eb380b60
commit ecb2a8b9bc
3 changed files with 54 additions and 13 deletions
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test/CodeGen/PowerPC/2008-03-05-RegScavengerAssert.ll
+18
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; RUN: llvm-as < %s | llc -mtriple=powerpc-apple-darwin -enable-ppc-regscavenger
declare i8* @bar(i32)
define void @foo(i8* %pp) nounwind {
entry:
%tmp2 = tail call i8* @bar( i32 14 ) nounwind ; <i8*> [#uses=0]
%tmp28 = bitcast i8* %pp to void ()** ; <void ()**> [#uses=1]
%tmp38 = load void ()** %tmp28, align 4 ; <void ()*> [#uses=2]
br i1 false, label %bb34, label %bb25
bb25: ; preds = %entry
%tmp30 = bitcast void ()* %tmp38 to void (i8*)* ; <void (i8*)*> [#uses=1]
tail call void %tmp30( i8* null ) nounwind
ret void
bb34: ; preds = %entry
tail call void %tmp38( ) nounwind
ret void
}