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Add 32-bit Arm and AArch64 to CallingConventions.md #9878

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Jun 17, 2020
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Add 32-bit Arm and AArch64 to CallingConventions.md #9878

merged 1 commit into from
Jun 17, 2020

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@knn-k knn-k commented Jun 15, 2020 •
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This commit adds sections for 32-bit Arm and AArch64 to CallingConventions.md.

Signed-off-by: KONNO Kazuhiro [email protected]

@knn-k knn-k mentioned this pull request Jun 15, 2020
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knn-k commented Jun 15, 2020

Related issue: #9877

@knn-k knn-k force-pushed the aarch64callconvDoc branch from 0c326c1 to f54f5bc Compare June 15, 2020 01:33
@knn-k knn-k changed the title Add AArch64 to CallingConventions.md Add 32-bit Arm and AArch64 to CallingConventions.md Jun 15, 2020
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knn-k commented Jun 15, 2020 •
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See also eclipse-omr/omr#5308 for the system linkage.

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knn-k commented Jun 16, 2020

R6 is Java BP (aka J9A0) in 32-bit Arm. The register is never assigned by the JIT compiler.
If I understand it correctly, there is no need to reserve a register for Java BP in the JIT any longer.

@knn-k knn-k force-pushed the aarch64callconvDoc branch from f54f5bc to ee833c5 Compare June 16, 2020 01:08
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Add 32-bit Arm and AArch64 to CallingConventions.md
5703ba3 
This commit adds sections for 32-bit Arm and AArch64 to CallingConventions.md.

Signed-off-by: KONNO Kazuhiro <[email protected]>
@knn-k knn-k force-pushed the aarch64callconvDoc branch from ee833c5 to 5703ba3 Compare June 16, 2020 02:37
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knn-k commented Jun 16, 2020

Added 32-bit Arm VFP registers to the table.

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knn-k commented Jun 17, 2020

@fjeremic Could you review this, please?

@fjeremic fjeremic self-assigned this Jun 17, 2020
@fjeremic fjeremic merged commit 50ba90c into eclipse-openj9:master Jun 17, 2020
@knn-k knn-k deleted the aarch64callconvDoc branch June 17, 2020 17:39
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