1; RUN: llc < %s -mtriple=i386-apple-darwin10 -mcpu=core2 | FileCheck %s 2; rdar://7475489 3 4define i32 @test1(i32 %a, i32 %b) nounwind ssp { 5entry: 6; CHECK: test1: 7; CHECK: xorb 8; CHECK-NOT: andb 9; CHECK-NOT: shrb 10; CHECK: testb $64 11 %0 = and i32 %a, 16384 12 %1 = icmp ne i32 %0, 0 13 %2 = and i32 %b, 16384 14 %3 = icmp ne i32 %2, 0 15 %4 = xor i1 %1, %3 16 br i1 %4, label %bb1, label %bb 17 18bb: ; preds = %entry 19 %5 = tail call i32 (...)* @foo() nounwind ; <i32> [#uses=1] 20 ret i32 %5 21 22bb1: ; preds = %entry 23 %6 = tail call i32 (...)* @bar() nounwind ; <i32> [#uses=1] 24 ret i32 %6 25} 26 27declare i32 @foo(...) 28 29declare i32 @bar(...) 30 31 32 33; PR3351 - (P == 0) & (Q == 0) -> (P|Q) == 0 34define i32 @test2(i32* %P, i32* %Q) nounwind ssp { 35entry: 36 %a = icmp eq i32* %P, null ; <i1> [#uses=1] 37 %b = icmp eq i32* %Q, null ; <i1> [#uses=1] 38 %c = and i1 %a, %b 39 br i1 %c, label %bb1, label %return 40 41bb1: ; preds = %entry 42 ret i32 4 43 44return: ; preds = %entry 45 ret i32 192 46; CHECK: test2: 47; CHECK: movl 4(%esp), %eax 48; CHECK-NEXT: orl 8(%esp), %eax 49; CHECK-NEXT: jne LBB1_2 50} 51 52; PR3351 - (P != 0) | (Q != 0) -> (P|Q) != 0 53define i32 @test3(i32* %P, i32* %Q) nounwind ssp { 54entry: 55 %a = icmp ne i32* %P, null ; <i1> [#uses=1] 56 %b = icmp ne i32* %Q, null ; <i1> [#uses=1] 57 %c = or i1 %a, %b 58 br i1 %c, label %bb1, label %return 59 60bb1: ; preds = %entry 61 ret i32 4 62 63return: ; preds = %entry 64 ret i32 192 65; CHECK: test3: 66; CHECK: movl 4(%esp), %eax 67; CHECK-NEXT: orl 8(%esp), %eax 68; CHECK-NEXT: je LBB2_2 69} 70 71; <rdar://problem/7598384>: 72; 73; jCC L1 74; jmp L2 75; L1: 76; ... 77; L2: 78; ... 79; 80; to: 81; 82; jnCC L2 83; L1: 84; ... 85; L2: 86; ... 87define float @test4(float %x, float %y) nounwind readnone optsize ssp { 88entry: 89 %0 = fpext float %x to double ; <double> [#uses=1] 90 %1 = fpext float %y to double ; <double> [#uses=1] 91 %2 = fmul double %0, %1 ; <double> [#uses=3] 92 %3 = fcmp oeq double %2, 0.000000e+00 ; <i1> [#uses=1] 93 br i1 %3, label %bb2, label %bb1 94 95; CHECK: jne 96; CHECK-NEXT: jnp 97; CHECK-NOT: jmp 98; CHECK: LBB 99 100bb1: ; preds = %entry 101 %4 = fadd double %2, -1.000000e+00 ; <double> [#uses=1] 102 br label %bb2 103 104bb2: ; preds = %entry, %bb1 105 %.0.in = phi double [ %4, %bb1 ], [ %2, %entry ] ; <double> [#uses=1] 106 %.0 = fptrunc double %.0.in to float ; <float> [#uses=1] 107 ret float %.0 108} 109