; RUN: llc < %s -mtriple=i386-apple-darwin10 -mcpu=penryn | 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 LBB1_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 LBB2_2
}
; <rdar://problem/7598384>:
;
; jCC L1
; jmp L2
; L1:
; ...
; L2:
; ...
;
; to:
;
; jnCC L2
; L1:
; ...
; L2:
; ...
define float @test4(float %x, float %y) nounwind readnone optsize ssp {
entry:
%0 = fpext float %x to double ; <double> [#uses=1]
%1 = fpext float %y to double ; <double> [#uses=1]
%2 = fmul double %0, %1 ; <double> [#uses=3]
%3 = fcmp oeq double %2, 0.000000e+00 ; <i1> [#uses=1]
br i1 %3, label %bb2, label %bb1
; CHECK: jne
; CHECK-NEXT: jnp
; CHECK-NOT: jmp
; CHECK: LBB
bb1: ; preds = %entry
%4 = fadd double %2, -1.000000e+00 ; <double> [#uses=1]
br label %bb2
bb2: ; preds = %entry, %bb1
%.0.in = phi double [ %4, %bb1 ], [ %2, %entry ] ; <double> [#uses=1]
%.0 = fptrunc double %.0.in to float ; <float> [#uses=1]
ret float %.0
}