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Revert "Resurrect r191017 " GVN proceeds in the presence of dead code" plus a fix to PR17307 & 17308."

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This causes PR17852.

This reverts commit d93e8a06b2.

Conflicts:
	test/Transforms/GVN/cond_br2.ll

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@194348 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Bill Wendling
2013-11-10 07:34:34 +00:00
parent 6d9e013447
commit 855c29d82c
9 changed files with 28 additions and 389 deletions
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8
test/Transforms/GVN/2007-07-26-InterlockingLoops.ll
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@@ -2,7 +2,7 @@
@last = external global [65 x i32*]
define i32 @NextRootMove(i32 %wtm, i32 %x, i32 %y, i32 %z) {
define i32 @NextRootMove(i32 %wtm) {
entry:
%A = alloca i32*
%tmp17618 = load i32** getelementptr ([65 x i32*]* @last, i32 0, i32 1), align 4
@@ -15,14 +15,12 @@ entry:
br label %cond_true116
cond_true116:
%cmp = icmp eq i32 %x, %y
br i1 %cmp, label %cond_true128, label %cond_true145
br i1 false, label %cond_true128, label %cond_true145
cond_true128:
%tmp17625 = load i32** getelementptr ([65 x i32*]* @last, i32 0, i32 1), align 4
store i32* %tmp17625, i32** %A
%cmp1 = icmp eq i32 %x, %z
br i1 %cmp1 , label %bb98.backedge, label %return.loopexit
br i1 false, label %bb98.backedge, label %return.loopexit
bb98.backedge:
br label %cond_true116