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[CloneFunction] Add a testcase for r277691/r277693 

PR28848 had a very nice reduction of the underlying cause of the bug.
Our ValueMap had, in an entry for an Instruction, a ConstantInt.

This is not at all unexpected but should be handled properly.

llvm-svn: 277773
This commit is contained in:
David Majnemer 2016-08-04 21:28:59 +00:00
parent bdade36769
commit b48ed0f721
1 changed files with 21 additions and 0 deletions
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21
llvm/test/Transforms/Inline/inline_constprop.ll
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@ -301,3 +301,24 @@ entry:
; CHECK-LABEL: define i32 @PR28802( ; CHECK-LABEL: define i32 @PR28802(
; CHECK: call i32 @PR28802.external(i32 0) ; CHECK: call i32 @PR28802.external(i32 0)
; CHECK: ret i32 0 ; CHECK: ret i32 0
define internal i32 @PR28848.callee(i32 %p2, i1 %c) {
entry:
br i1 %c, label %cond.end, label %cond.true
cond.true:
br label %cond.end
cond.end:
%cond = phi i32 [ 0, %cond.true ], [ %p2, %entry ]
%or = or i32 %cond, %p2
ret i32 %or
}
define i32 @PR28848() {
entry:
%call = call i32 @PR28848.callee(i32 0, i1 false)
ret i32 %call
}
; CHECK-LABEL: define i32 @PR28848(
; CHECK: ret i32 0