select-use-sr.ll
458 Bytes
; RUN: llc < %s -march=msp430 | FileCheck %s
; PR32769
target triple = "msp430"
; Test that CMP instruction is not removed by MachineCSE.
;
; CHECK-LABEL: @f
; CHECK: cmp r15, r13
; CHECK: cmp r15, r13
; CHECK-NEXT: jeq .LBB0_2
define i16 @f(i16, i16, i16, i16) {
entry:
%4 = icmp ult i16 %1, %3
%5 = zext i1 %4 to i16
%6 = icmp ult i16 %0, %2
%7 = zext i1 %6 to i16
%8 = icmp eq i16 %1, %3
%out = select i1 %8, i16 %5, i16 %7
ret i16 %out
}