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; RUN: llc < %s -march=x86 | 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
}
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