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llvm-mirror/test/Regression/Transforms/InstCombine/narrow.ll
Chris Lattner 0da270237b This test passes now, remove xfail marker
Change test to be a positive test instead of a negative test

llvm-svn: 28159
2006-05-07 18:16:31 +00:00

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617 B
LLVM

; This file contains various testcases that check to see that instcombine
; is narrowing computations when possible.
; RUN: llvm-as < %s | opt -instcombine | llvm-dis | grep 'ret bool false'
; test1 - Eliminating the casts in this testcase (by narrowing the AND
; operation) allows instcombine to realize the function always returns false.
;
bool %test1(int %A, int %B) {
%C1 = setlt int %A, %B
%ELIM1 = cast bool %C1 to uint
%C2 = setgt int %A, %B
%ELIM2 = cast bool %C2 to uint
%C3 = and uint %ELIM1, %ELIM2
%ELIM3 = cast uint %C3 to bool
ret bool %ELIM3
}