2cd32132db
This patch utilizes getReservedRegs() to find asm clobberable registers. And to make the result of getReservedRegs() accurate, this patch implements the todo, which is to make r2 allocatable on AIX for some leaf functions.
22 lines
1.0 KiB
YAML
22 lines
1.0 KiB
YAML
# REQUIRES: asserts
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# RUN: llc -verify-machineinstrs -simplify-mir -mtriple=powerpc64-ibm-aix-xcoff \
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# RUN: -mcpu=ppc -debug-only=regalloc %s -o - 2>&1 | FileCheck %s
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---
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name: i64
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alignment: 4
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tracksRegLiveness: true
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body: |
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bb.0.entry:
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liveins: $x3, $x4
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%0: g8rc_and_g8rc_nox0 = COPY $x3
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%1:g8rc = LD 0, %0
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%2:f8rc = LFS 0, $x4
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$x3 = COPY %1
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$f1 = COPY %2
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BLR8 implicit $lr8, implicit undef $rm, implicit $x3, implicit $f1
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...
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# CHECK-DAG: AllocationOrder(VFRC) = [ $vf2 $vf3 $vf4 $vf5 $vf0 $vf1 $vf6 $vf7 $vf8 $vf9 $vf10 $vf11 $vf12 $vf13 $vf14 $vf15 $vf16 $vf17 $vf18 $vf19 $vf31 $vf30 $vf29 $vf28 $vf27 $vf26 $vf25 $vf24 $vf23 $vf22 $vf21 $vf20 ]
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# CHECK-DAG: AllocationOrder(G8RC_and_G8RC_NOX0) = [ $x3 $x4 $x5 $x6 $x7 $x8 $x9 $x10 $x11 $x12 $x2 $x31 $x30 $x29 $x28 $x27 $x26 $x25 $x24 $x23 $x22 $x21 $x20 $x19 $x18 $x17 $x16 $x15 $x14 ]
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# CHECK-DAG: AllocationOrder(F8RC) = [ $f0 $f1 $f2 $f3 $f4 $f5 $f6 $f7 $f8 $f9 $f10 $f11 $f12 $f13 $f31 $f30 $f29 $f28 $f27 $f26 $f25 $f24 $f23 $f22 $f21 $f20 $f19 $f18 $f17 $f16 $f15 $f14 ]
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