| Evan Cheng | 60108e9 | 2010-07-15 22:07:12 +0000 | [diff] [blame] | 1 | ; RUN: llc < %s -march=arm -mcpu=cortex-a8 -mattr=+vfp2 -enable-unsafe-fp-math -enable-no-nans-fp-math | FileCheck -check-prefix=FINITE %s |
| Evan Cheng | 218977b | 2010-07-13 19:27:42 +0000 | [diff] [blame] | 2 | ; RUN: llc < %s -march=arm -mcpu=cortex-a8 -mattr=+vfp2 -enable-unsafe-fp-math | FileCheck -check-prefix=NAN %s |
| Evan Cheng | 515fe3a | 2010-07-08 02:08:50 +0000 | [diff] [blame] | 3 | ; rdar://7461510 |
| 4 | |
| 5 | define arm_apcscc i32 @t1(float* %a, float* %b) nounwind { |
| 6 | entry: |
| Evan Cheng | 218977b | 2010-07-13 19:27:42 +0000 | [diff] [blame] | 7 | ; FINITE: t1: |
| 8 | ; FINITE-NOT: vldr |
| 9 | ; FINITE: ldr |
| 10 | ; FINITE: ldr |
| 11 | ; FINITE: cmp r0, r1 |
| 12 | ; FINITE-NOT: vcmpe.f32 |
| 13 | ; FINITE-NOT: vmrs |
| 14 | ; FINITE: beq |
| 15 | |
| 16 | ; NAN: t1: |
| 17 | ; NAN: vldr.32 s0, |
| 18 | ; NAN: vldr.32 s1, |
| 19 | ; NAN: vcmpe.f32 s1, s0 |
| 20 | ; NAN: vmrs apsr_nzcv, fpscr |
| 21 | ; NAN: beq |
| Evan Cheng | 515fe3a | 2010-07-08 02:08:50 +0000 | [diff] [blame] | 22 | %0 = load float* %a |
| 23 | %1 = load float* %b |
| 24 | %2 = fcmp une float %0, %1 |
| 25 | br i1 %2, label %bb1, label %bb2 |
| 26 | |
| 27 | bb1: |
| 28 | %3 = call i32 @bar() |
| 29 | ret i32 %3 |
| 30 | |
| 31 | bb2: |
| 32 | %4 = call i32 @foo() |
| 33 | ret i32 %4 |
| 34 | } |
| 35 | |
| Evan Cheng | 218977b | 2010-07-13 19:27:42 +0000 | [diff] [blame] | 36 | define arm_apcscc i32 @t2(double* %a, double* %b) nounwind { |
| 37 | entry: |
| 38 | ; FINITE: t2: |
| 39 | ; FINITE-NOT: vldr |
| 40 | ; FINITE: ldrd r0, [r0] |
| 41 | ; FINITE: cmp r0, #0 |
| 42 | ; FINITE: cmpeq r1, #0 |
| 43 | ; FINITE-NOT: vcmpe.f32 |
| 44 | ; FINITE-NOT: vmrs |
| 45 | ; FINITE: bne |
| 46 | %0 = load double* %a |
| 47 | %1 = fcmp oeq double %0, 0.000000e+00 |
| 48 | br i1 %1, label %bb1, label %bb2 |
| 49 | |
| 50 | bb1: |
| 51 | %2 = call i32 @bar() |
| 52 | ret i32 %2 |
| 53 | |
| 54 | bb2: |
| 55 | %3 = call i32 @foo() |
| 56 | ret i32 %3 |
| 57 | } |
| 58 | |
| 59 | define arm_apcscc i32 @t3(float* %a, float* %b) nounwind { |
| 60 | entry: |
| 61 | ; FINITE: t3: |
| 62 | ; FINITE-NOT: vldr |
| 63 | ; FINITE: ldr r0, [r0] |
| 64 | ; FINITE: cmp r0, #0 |
| 65 | ; FINITE-NOT: vcmpe.f32 |
| 66 | ; FINITE-NOT: vmrs |
| 67 | ; FINITE: bne |
| 68 | %0 = load float* %a |
| 69 | %1 = fcmp oeq float %0, 0.000000e+00 |
| 70 | br i1 %1, label %bb1, label %bb2 |
| 71 | |
| 72 | bb1: |
| 73 | %2 = call i32 @bar() |
| 74 | ret i32 %2 |
| 75 | |
| 76 | bb2: |
| 77 | %3 = call i32 @foo() |
| 78 | ret i32 %3 |
| 79 | } |
| 80 | |
| Evan Cheng | 515fe3a | 2010-07-08 02:08:50 +0000 | [diff] [blame] | 81 | declare i32 @bar() |
| 82 | declare i32 @foo() |