llvm-6502/test/Transforms/InstCombine/apint-cast.ll
2009-09-08 22:34:10 +00:00

21 lines
915 B
LLVM

; Tests to make sure elimination of casts is working correctly
; RUN: opt < %s -instcombine -S | notcast
define i17 @test1(i17 %a) {
%tmp = zext i17 %a to i37 ; <i37> [#uses=2]
%tmp21 = lshr i37 %tmp, 8 ; <i37> [#uses=1]
%tmp5 = shl i37 %tmp, 8 ; <i37> [#uses=1]
%tmp.upgrd.32 = or i37 %tmp21, %tmp5 ; <i37> [#uses=1]
%tmp.upgrd.3 = trunc i37 %tmp.upgrd.32 to i17 ; <i17> [#uses=1]
ret i17 %tmp.upgrd.3
}
define i167 @test2(i167 %a) {
%tmp = zext i167 %a to i577 ; <i577> [#uses=2]
%tmp21 = lshr i577 %tmp, 9 ; <i577> [#uses=1]
%tmp5 = shl i577 %tmp, 8 ; <i577> [#uses=1]
%tmp.upgrd.32 = or i577 %tmp21, %tmp5 ; <i577> [#uses=1]
%tmp.upgrd.3 = trunc i577 %tmp.upgrd.32 to i167 ; <i167> [#uses=1]
ret i167 %tmp.upgrd.3
}