Commit Graph

5 Commits

Author SHA1 Message Date
jasonliu f85bcc21dd [AIX] Turn -fdata-sections on by default in Clang
Summary:

This patch does the following:
1. Make InitTargetOptionsFromCodeGenFlags() accepts Triple as a
 parameter, because some options' default value is triple dependant.
2. DataSections is turned on by default on AIX for llc.
3. Test cases change accordingly because of the default behaviour change.
4. Clang Driver passes in -fdata-sections by default on AIX.

Reviewed By: MaskRay, DiggerLin

Differential Revision: https://reviews.llvm.org/D88737
2020-10-14 15:58:31 +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
jasonliu 77618cc237 [XCOFF][AIX] Fix getSymbol to return the correct qualname when necessary
Summary:
AIX symbol have qualname and unqualified name. The stock getSymbol
could only return unqualified name, which leads us to patch many
caller side(lowerConstant, getMCSymbolForTOCPseudoMO).
So we should try to address this problem in the callee
side(getSymbol) and clean up the caller side instead.

Note: this is a "mostly" NFC patch, with a fix for the original
lowerConstant behavior.

Differential Revision: https://reviews.llvm.org/D78045
2020-04-17 13:45:14 +00:00