| Christof Douma | 4a025cc | 2018-03-23 13:02:03 +0000 | [diff] [blame^] | 1 | ; RUN: llc -mtriple=thumbv7m-arm-none-eabi -mattr=+execute-only,+fp-armv8 %s -o - | FileCheck %s |
| 2 | |
| 3 | ; This function used to run into a code selection error on fp-armv8 due to |
| 4 | ; different ordering of the constant arguments of fcmp. Fixed by extending the |
| 5 | ; code selection to handle the missing case. |
| 6 | define arm_aapcs_vfpcc void @foo0() local_unnamed_addr { |
| 7 | br i1 undef, label %.end, label %1 |
| 8 | |
| 9 | %2 = fcmp nsz olt float undef, 0.000000e+00 |
| 10 | %3 = select i1 %2, float -5.000000e-01, float 5.000000e-01 |
| 11 | %4 = fadd nsz float undef, %3 |
| 12 | %5 = fptosi float %4 to i32 |
| 13 | %6 = ashr i32 %5, 4 |
| 14 | %7 = icmp slt i32 %6, 0 |
| 15 | br i1 %7, label %8, label %.end |
| 16 | |
| 17 | tail call arm_aapcs_vfpcc void @bar() |
| 18 | br label %.end |
| 19 | |
| 20 | .end: |
| 21 | ret void |
| 22 | } |
| 23 | ; CHECK-LABEL: foo0 |
| 24 | ; CHECK: vcmpe.f32 {{s[0-9]+}}, #0 |
| 25 | |
| 26 | |
| 27 | define arm_aapcs_vfpcc void @float1() local_unnamed_addr { |
| 28 | br i1 undef, label %.end, label %1 |
| 29 | |
| 30 | %2 = fcmp nsz olt float undef, 1.000000e+00 |
| 31 | %3 = select i1 %2, float -5.000000e-01, float 5.000000e-01 |
| 32 | %4 = fadd nsz float undef, %3 |
| 33 | %5 = fptosi float %4 to i32 |
| 34 | %6 = ashr i32 %5, 4 |
| 35 | %7 = icmp slt i32 %6, 0 |
| 36 | br i1 %7, label %8, label %.end |
| 37 | |
| 38 | tail call arm_aapcs_vfpcc void @bar() |
| 39 | br label %.end |
| 40 | |
| 41 | .end: |
| 42 | ret void |
| 43 | } |
| 44 | ; CHECK-LABEL: float1 |
| 45 | ; CHECK: vmov.f32 [[FPREG:s[0-9]+]], #1.000000e+00 |
| 46 | ; CHECK: vcmpe.f32 [[FPREG]], {{s[0-9]+}} |
| 47 | |
| 48 | define arm_aapcs_vfpcc void @float128() local_unnamed_addr { |
| 49 | br i1 undef, label %.end, label %1 |
| 50 | |
| 51 | %2 = fcmp nsz olt float undef, 128.000000e+00 |
| 52 | %3 = select i1 %2, float -5.000000e-01, float 5.000000e-01 |
| 53 | %4 = fadd nsz float undef, %3 |
| 54 | %5 = fptosi float %4 to i32 |
| 55 | %6 = ashr i32 %5, 4 |
| 56 | %7 = icmp slt i32 %6, 0 |
| 57 | br i1 %7, label %8, label %.end |
| 58 | |
| 59 | tail call arm_aapcs_vfpcc void @bar() |
| 60 | br label %.end |
| 61 | |
| 62 | .end: |
| 63 | ret void |
| 64 | } |
| 65 | ; CHECK-LABEL: float128 |
| 66 | ; CHECK: mov.w [[REG:r[0-9]+]], #1124073472 |
| 67 | ; CHECK: vmov [[FPREG:s[0-9]+]], [[REG]] |
| 68 | ; CHECK: vcmpe.f32 [[FPREG]], {{s[0-9]+}} |
| 69 | |
| 70 | |
| 71 | define arm_aapcs_vfpcc void @double1() local_unnamed_addr { |
| 72 | br i1 undef, label %.end, label %1 |
| 73 | |
| 74 | %2 = fcmp nsz olt double undef, 1.000000e+00 |
| 75 | %3 = select i1 %2, double -5.000000e-01, double 5.000000e-01 |
| 76 | %4 = fadd nsz double undef, %3 |
| 77 | %5 = fptosi double %4 to i32 |
| 78 | %6 = ashr i32 %5, 4 |
| 79 | %7 = icmp slt i32 %6, 0 |
| 80 | br i1 %7, label %8, label %.end |
| 81 | |
| 82 | tail call arm_aapcs_vfpcc void @bar() |
| 83 | br label %.end |
| 84 | |
| 85 | .end: |
| 86 | ret void |
| 87 | } |
| 88 | ; CHECK-LABEL: double1 |
| 89 | ; CHECK: vmov.f64 [[FPREG:d[0-9]+]], #1.000000e+00 |
| 90 | ; CHECK: vcmpe.f64 [[FPREG]], {{d[0-9]+}} |
| 91 | |
| 92 | define arm_aapcs_vfpcc void @double128() local_unnamed_addr { |
| 93 | br i1 undef, label %.end, label %1 |
| 94 | |
| 95 | %2 = fcmp nsz olt double undef, 128.000000e+00 |
| 96 | %3 = select i1 %2, double -5.000000e-01, double 5.000000e-01 |
| 97 | %4 = fadd nsz double undef, %3 |
| 98 | %5 = fptosi double %4 to i32 |
| 99 | %6 = ashr i32 %5, 4 |
| 100 | %7 = icmp slt i32 %6, 0 |
| 101 | br i1 %7, label %8, label %.end |
| 102 | |
| 103 | tail call arm_aapcs_vfpcc void @bar() |
| 104 | br label %.end |
| 105 | |
| 106 | .end: |
| 107 | ret void |
| 108 | } |
| 109 | ; CHECK-LABEL: double128 |
| 110 | ; CHECK: movs [[REGL:r[0-9]+]], #0 |
| 111 | ; CHECK: movs [[REGH:r[0-9]+]], #0 |
| 112 | ; CHECK: movt [[REGH]], #16480 |
| 113 | ; CHECK: vmov [[FPREG:d[0-9]+]], [[REGL]], [[REGH]] |
| 114 | ; CHECK: vcmpe.f64 [[FPREG]], {{d[0-9]+}} |
| 115 | |
| 116 | |
| 117 | declare arm_aapcs_vfpcc void @bar() local_unnamed_addr |
| 118 | |