| 1 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
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| 2 | // See https://llvm.org/LICENSE.txt for license information. |
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| 3 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
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| 4 | |
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| 5 | #include "../assembly.h" |
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| 6 | |
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| 7 | // grow_stack routine |
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| 8 | // This routine is VE specific |
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| 9 | // https://www.nec.com/en/global/prod/hpc/aurora/document/VE-ABI_v1.1.pdf |
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| 10 | |
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| 11 | // destroy %s62 and %s63 only |
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| 12 | |
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| 13 | #ifdef __ve__ |
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| 14 | |
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| 15 | .text |
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| 16 | .p2align 4 |
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| 17 | DEFINE_COMPILERRT_FUNCTION(__ve_grow_stack_align) |
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| 18 | subu.l %sp, %sp, %s0 # sp -= alloca size |
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| 19 | and %sp, %sp, %s1 # align sp |
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| 20 | brge.l.t %sp, %sl, 1f |
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| 21 | ld %s63, 0x18(,%tp) # load param area |
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| 22 | lea %s62, 0x13b # syscall # of grow |
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| 23 | shm.l %s62, 0x0(%s63) # stored at addr:0 |
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| 24 | shm.l %sl, 0x8(%s63) # old limit at addr:8 |
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| 25 | shm.l %sp, 0x10(%s63) # new limit at addr:16 |
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| 26 | monc |
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| 27 | 1: |
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| 28 | b.l (,%lr) |
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| 29 | END_COMPILERRT_FUNCTION(__ve_grow_stack_align) |
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| 30 | |
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| 31 | #endif // __ve__ |
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| 32 | |
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