llvm-project/llvm/test/Transforms/InstCombine/JavaCompare.ll

15 lines
635 B
LLVM

; This is the sequence of stuff that the Java front-end expands for a single
; <= comparison. Check to make sure we turn it into a <= (only)
; RUN: llvm-as < %s | opt -instcombine | llvm-dis | grep {%c3 = icmp sle i32 %A, %B}
define i1 @le(i32 %A, i32 %B) {
%c1 = icmp sgt i32 %A, %B ; <i1> [#uses=1]
%tmp = select i1 %c1, i32 1, i32 0 ; <i32> [#uses=1]
%c2 = icmp slt i32 %A, %B ; <i1> [#uses=1]
%result = select i1 %c2, i32 -1, i32 %tmp ; <i32> [#uses=1]
%c3 = icmp sle i32 %result, 0 ; <i1> [#uses=1]
ret i1 %c3
}