| Jakob Stoklund Olesen | d74d284 | 2012-05-23 22:37:27 +0000 | [diff] [blame] | 1 | ; RUN: llc < %s -mcpu=cortex-a8 | FileCheck %s |
| 2 | target triple = "thumbv7-apple-ios" |
| 3 | |
| 4 | ; CHECK: local_split |
| 5 | ; |
| 6 | ; The load must go into d0-15 which are all clobbered by the asm. |
| 7 | ; RAGreedy should split the range and use d16-d31 to avoid a spill. |
| 8 | ; |
| 9 | ; CHECK: vldr s |
| 10 | ; CHECK-NOT: vstr |
| 11 | ; CHECK: vadd.f32 |
| 12 | ; CHECK-NOT: vstr |
| 13 | ; CHECK: vorr |
| 14 | ; CHECK: vstr s |
| 15 | define void @local_split(float* nocapture %p) nounwind ssp { |
| 16 | entry: |
| 17 | %x = load float* %p, align 4 |
| 18 | %a = fadd float %x, 1.0 |
| 19 | tail call void asm sideeffect "", "~{d0},~{d1},~{d2},~{d3},~{d4},~{d5},~{d6},~{d7},~{d8},~{d9},~{d10},~{d11},~{d12},~{d13},~{d14},~{d15}"() nounwind |
| 20 | store float %a, float* %p, align 4 |
| 21 | ret void |
| 22 | } |
| Jakob Stoklund Olesen | 39867e6 | 2012-05-23 23:42:23 +0000 | [diff] [blame] | 23 | |
| 24 | ; CHECK: global_split |
| 25 | ; |
| 26 | ; Same thing, but across basic blocks. |
| 27 | ; |
| 28 | ; CHECK: vldr s |
| 29 | ; CHECK-NOT: vstr |
| 30 | ; CHECK: vadd.f32 |
| 31 | ; CHECK-NOT: vstr |
| 32 | ; CHECK: vorr |
| 33 | ; CHECK: vstr s |
| 34 | define void @global_split(float* nocapture %p1, float* nocapture %p2) nounwind ssp { |
| 35 | entry: |
| 36 | %0 = load float* %p1, align 4 |
| 37 | %add = fadd float %0, 1.000000e+00 |
| 38 | tail call void asm sideeffect "", "~{d0},~{d1},~{d2},~{d3},~{d4},~{d5},~{d6},~{d7},~{d8},~{d9},~{d10},~{d11},~{d12},~{d13},~{d14},~{d15}"() nounwind |
| 39 | %cmp = fcmp ogt float %add, 0.000000e+00 |
| 40 | br i1 %cmp, label %if.then, label %if.end |
| 41 | |
| 42 | if.then: |
| 43 | store float %add, float* %p2, align 4 |
| 44 | br label %if.end |
| 45 | |
| 46 | if.end: |
| 47 | store float %add, float* %p1, align 4 |
| 48 | ret void |
| 49 | } |