; This is a basic sanity check for constant propagation. It tests the basic | |
; logic operations. | |
; RUN: opt < %s -sccp -S | not grep and | |
; RUN: opt < %s -sccp -S | not grep trunc | |
; RUN: opt < %s -sccp -S | grep {ret i100 -1} | |
define i100 @test(i133 %A) { | |
%B = and i133 0, %A | |
%C = icmp sgt i133 %B, 0 | |
br i1 %C, label %BB1, label %BB2 | |
BB1: | |
%t3 = xor i133 %B, -1 | |
%t4 = trunc i133 %t3 to i100 | |
br label %BB3 | |
BB2: | |
%f1 = or i133 -1, %A | |
%f2 = lshr i133 %f1, 33 | |
%f3 = trunc i133 %f2 to i100 | |
br label %BB3 | |
BB3: | |
%Ret = phi i100 [%t4, %BB1], [%f3, %BB2] | |
ret i100 %Ret | |
} |