llvm-6502/test/CodeGen/X86/brcond.ll

; RUN: llc < %s -mtriple=i386-apple-darwin10 | FileCheck %s
; rdar://7475489

define i32 @test1(i32 %a, i32 %b) nounwind ssp {
entry:
; CHECK: test1:
; CHECK: xorb
; CHECK-NOT: andb
; CHECK-NOT: shrb
; CHECK: testb $64
  %0 = and i32 %a, 16384
  %1 = icmp ne i32 %0, 0
  %2 = and i32 %b, 16384
  %3 = icmp ne i32 %2, 0
  %4 = xor i1 %1, %3
  br i1 %4, label %bb1, label %bb

bb:                                               ; preds = %entry
  %5 = tail call i32 (...)* @foo() nounwind       ; <i32> [#uses=1]
  ret i32 %5

bb1:                                              ; preds = %entry
  %6 = tail call i32 (...)* @bar() nounwind       ; <i32> [#uses=1]
  ret i32 %6
}

declare i32 @foo(...)

declare i32 @bar(...)



; PR3351 - (P == 0) & (Q == 0) -> (P|Q) == 0
define i32 @test2(i32* %P, i32* %Q) nounwind ssp {
entry:
  %a = icmp eq i32* %P, null                    ; <i1> [#uses=1]
  %b = icmp eq i32* %Q, null                    ; <i1> [#uses=1]
  %c = and i1 %a, %b
  br i1 %c, label %bb1, label %return

bb1:                                              ; preds = %entry
  ret i32 4

return:                                           ; preds = %entry
  ret i32 192
; CHECK: test2:
; CHECK:	movl	4(%esp), %eax
; CHECK-NEXT:	orl	8(%esp), %eax
; CHECK-NEXT:	jne	LBB2_2
}

; PR3351 - (P != 0) | (Q != 0) -> (P|Q) != 0
define i32 @test3(i32* %P, i32* %Q) nounwind ssp {
entry:
  %a = icmp ne i32* %P, null                    ; <i1> [#uses=1]
  %b = icmp ne i32* %Q, null                    ; <i1> [#uses=1]
  %c = or i1 %a, %b
  br i1 %c, label %bb1, label %return

bb1:                                              ; preds = %entry
  ret i32 4

return:                                           ; preds = %entry
  ret i32 192
; CHECK: test3:
; CHECK:	movl	4(%esp), %eax
; CHECK-NEXT:	orl	8(%esp), %eax
; CHECK-NEXT:	je	LBB3_2
}