YouCompleteMe/cpp/llvm/test/Transforms/InstCombine/JavaCompare.ll
2012-07-05 17:51:06 -07:00

15 lines
611 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: opt < %s -instcombine -S | grep {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
}