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llvm-6502/test/Transforms/SimplifyCFG/2003-08-17-BranchFoldOrdering.ll
Dan Gohman f2f6ce65b7 Change tests from "opt %s" to "opt < %s" so that opt doesn't see the
input filename so that opt doesn't print the input filename in the
output so that grep lines in the tests don't unintentionally match
strings in the input filename.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81537 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-11 18:01:28 +00:00

27 lines
635 B
LLVM

; This test checks to make sure that 'br X, Dest, Dest' is folded into
; 'br Dest'. This can only happen after the 'Z' block is eliminated. This is
; due to the fact that the SimplifyCFG function does not use
; the ConstantFoldTerminator function.
; RUN: opt < %s -simplifycfg -S | \
; RUN: not grep {br i1 %c2}
declare void @noop()
define i32 @test(i1 %c1, i1 %c2) {
call void @noop( )
br i1 %c1, label %A, label %Y
A: ; preds = %0
call void @noop( )
br i1 %c2, label %Z, label %X
Z: ; preds = %A
br label %X
X: ; preds = %Y, %Z, %A
call void @noop( )
ret i32 0
Y: ; preds = %0
call void @noop( )
br label %X
}