Commit Graph

8 Commits

Author SHA1 Message Date
jasonliu 572dde55ee [XCOFF][AIX] Use 'L..' instead of '.L' for getPrivateGlobalPrefix in DataLayout
Summary:
D80831 changed part of the prefix usage for AIX.
But there are other places getting prefix from DataLayout.
This patch intends to make prefix usage consistent on AIX.

Reviewed by: hubert.reinterpretcast, daltenty

Differential Revision: https://reviews.llvm.org/D81270
2020-07-03 18:25:14 +00:00
David Tenty d20fdcabf8 [AIX] Update data directives for AIX assembly
Summary:
The standard data emission directives (e.g. .short, .long) in the AIX assembler
have the unintended consequence of aligning their output to the natural byte
boundary. This cause problems because we aren't expecting behavior from the
Data*bitsDirectives, so the final alignment of data isn't correct in some cases
on AIX.

This patch updated the Data*bitsDirectives to use .vbyte pseudo-ops instead to emit the
data, since we will emit the .align directives as needed. We update the existing
testcases and add a test for emission of struct data.

Reviewers: hubert.reinterpretcast, Xiangling_L, jasonliu

Reviewed By: hubert.reinterpretcast, jasonliu

Subscribers: wuzish, nemanjai, hiraditya, kbarton, arphaman, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D80934
2020-06-03 10:55:59 -04:00
Xiangling_Liao 2419dce5d1 [NFC][AIX] Remove spaces after the comma for '.csect' directive
To be consistent with other directives like '.comm', '.lcomm', we remove
the spaces after the comma for '.csect' on AIX.

Differential Revision: https://reviews.llvm.org/D80247
2020-05-22 11:10:32 -04:00
jasonliu 51e6fc44d0 [XCOFF][AIX] Emit correct alignment for csect
Summary:
This patch tries to emit the correct alignment result for both
object file generation path and assembly path.

Reviewed by: hubert.reinterpretcast, DiggerLin, daltenty

Differential Revision: https://reviews.llvm.org/D79127
2020-05-11 19:43:10 +00:00
LemonBoy f30416fdde [AsmPrinter] Fix emission of non-standard integer constants for BE targets
The code assumed that zero-extending the integer constant to the
designated alloc size would be fine even for BE targets, but that's not
the case as that pulls in zeros from the MSB side while we actually
expect the padding zeros to go after the LSB.

I've changed the codepath handling the constant integers to use the
store size for both small(er than u64) and big constants and then add
zero padding right after that.

Differential Revision: https://reviews.llvm.org/D78011
2020-04-27 14:57:29 -07:00
Fangrui Song 71e2ca6e32 [llvm-objdump] -d: print `00000000 <foo>:` instead of `00000000 foo:`
The new behavior matches GNU objdump. A pair of angle brackets makes tests slightly easier.

`.foo:` is not unique and thus cannot be used in a `CHECK-LABEL:` directive.
Without `-LABEL`, the CHECK line can match the `Disassembly of section`
line and causes the next `CHECK-NEXT:` to fail.

```
Disassembly of section .foo:

0000000000001634 .foo:
```

Bdragon: <> has metalinguistic connotation. it just "feels right"

Reviewed By: rupprecht

Differential Revision: https://reviews.llvm.org/D75713
2020-03-05 18:05:28 -08:00
David Tenty d32fa59fa0 [XCOFF] Don't emit non-external labels in the symbol table and handle MCSA_LGlobal
Summary:
We need to handle the  MCSA_LGlobal case in emitSymbolAttribute for functions marked internal in the IR so that the
appropriate storage class is emitted on the function descriptor csect.  As part of this we need to make sure that external
labels are not emitted into the symbol table, so we don't emit the descriptor label in the object writing path.

Reviewers: jasonliu, DiggerLin, hubert.reinterpretcast

Reviewed By: jasonliu

Subscribers: Xiangling_L, wuzish, nemanjai, hiraditya, jsji, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D74968
2020-02-27 13:37:13 -05:00
diggerlin a3832f33d9 [AIX][XCOFF]Implement mergeable const
SUMMARY:
In this patch, we map mergeable const objects to the read-only section in the same manner as const objects that are not mergeable.

Reviewers: hubert.reinterpretcast,jasonliu
Subscribers: wuzish, nemanjai, hiraditya

Differential Revision: https://reviews.llvm.org/D71551
2020-01-07 11:20:51 -05:00