1 ; RUN: llc < %s -mtriple=x86_64-apple-darwin -mcpu=knl --show-mc-encoding | FileCheck %s 2 3 ; CHECK-LABEL: test1 4 ; CHECK: vucomisd {{.*}}encoding: [0x62 5 define double @test1(double %a, double %b) nounwind { 6 %tobool = fcmp une double %a, %b 7 br i1 %tobool, label %l1, label %l2 8 9 l1: 10 %c = fsub double %a, %b 11 ret double %c 12 l2: 13 %c1 = fadd double %a, %b 14 ret double %c1 15 } 16 17 ; CHECK-LABEL: test2 18 ; CHECK: vucomiss {{.*}}encoding: [0x62 19 define float @test2(float %a, float %b) nounwind { 20 %tobool = fcmp olt float %a, %b 21 br i1 %tobool, label %l1, label %l2 22 23 l1: 24 %c = fsub float %a, %b 25 ret float %c 26 l2: 27 %c1 = fadd float %a, %b 28 ret float %c1 29 } 30 31 ; FIXME: Can use vcmpeqss and extract from the mask here in AVX512. 32 ; CHECK-LABEL: test3 33 ; CHECK: vucomiss {{.*}}encoding: [0x62 34 define i32 @test3(float %a, float %b) { 35 36 %cmp10.i = fcmp oeq float %a, %b 37 %conv11.i = zext i1 %cmp10.i to i32 38 ret i32 %conv11.i 39 } 40 41 ; CHECK-LABEL: test5 42 ; CHECK: ret 43 define float @test5(float %p) #0 { 44 entry: 45 %cmp = fcmp oeq float %p, 0.000000e+00 46 br i1 %cmp, label %return, label %if.end 47 48 if.end: ; preds = %entry 49 %cmp1 = fcmp ogt float %p, 0.000000e+00 50 %cond = select i1 %cmp1, float 1.000000e+00, float -1.000000e+00 51 br label %return 52 53 return: ; preds = %if.end, %entry 54 %retval.0 = phi float [ %cond, %if.end ], [ %p, %entry ] 55 ret float %retval.0 56 } 57 58 ; CHECK-LABEL: test6 59 ; CHECK: cmpl 60 ; CHECK-NOT: kmov 61 ; CHECK: ret 62 define i32 @test6(i32 %a, i32 %b) { 63 %cmp = icmp eq i32 %a, %b 64 %res = zext i1 %cmp to i32 65 ret i32 %res 66 } 67 68 ; CHECK-LABEL: test7 69 ; CHECK: vucomisd 70 ; CHECK-NOT: kmov 71 ; CHECK: ret 72 define i32 @test7(double %x, double %y) #2 { 73 entry: 74 %0 = fcmp one double %x, %y 75 %or = zext i1 %0 to i32 76 ret i32 %or 77 } 78 79 define i32 @test8(i32 %a1, i32 %a2, i32 %a3) { 80 %tmp1 = icmp eq i32 %a1, -1 81 %tmp2 = icmp eq i32 %a2, -2147483648 82 %tmp3 = and i1 %tmp1, %tmp2 83 %tmp4 = icmp eq i32 %a3, 0 84 %tmp5 = or i1 %tmp3, %tmp4 85 %res = select i1 %tmp5, i32 1, i32 %a3 86 ret i32 %res 87 } 88 89 ; CHECK-LABEL: test9 90 ; CHECK: testb 91 ; CHECK-NOT: kmov 92 ; CHECK: ret 93 define i32 @test9(i64 %a) { 94 %b = and i64 %a, 1 95 %cmp10.i = icmp eq i64 %b, 0 96 br i1 %cmp10.i, label %A, label %B 97 A: 98 ret i32 6 99 B: 100 ret i32 7 101 } 102
