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9 Commits

Author SHA1 Message Date
Luís Marques 5b1d0dc6bf [RISCV][NFC] Fix use of missing attribute groups in tests 2019-12-23 15:39:04 +00:00
Luís Marques c6b09bff56 [RISCV] Fix wrong CFI directives 
Summary: Removes CFI CFA directives that could incorrectly propagate
beyond the basic block they were inteded for. Specifically it removes
the epilogue CFI directives. See the branch_and_tail_call test for an
example of the issue. Should fix the stack unwinding issues caused by
the incorrect directives.

Reviewers: asb, lenary, shiva0217
Reviewed By: lenary
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D69723
 2019-11-14 18:29:50 +00:00
Luís Marques c5b56caa32 Revert "[RISCV] Fix wrong CFI directives" 
test/DebugInfo/RISCV/relax-debug-frame.ll wasn't properly updated.
 2019-11-13 13:28:33 +00:00
Luís Marques a5ce8bd715 [RISCV] Fix wrong CFI directives 
Summary: Removes CFI CFA directives that could incorrectly propagate
beyond the basic block they were inteded for. Specifically it removes
the epilogue CFI directives. See the branch_and_tail_call test for an
example of the issue. Should fix the stack unwinding issues caused by
the incorrect directives.

Reviewers: asb, lenary, shiva0217
Reviewed By: lenary
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D69723
 2019-11-13 13:06:15 +00:00
Luís Marques be0fead7bf [RISCV][NFC] Add CFI-related tests 
Summary: Adds tests necessary to properly show the impact of other
patches that affect the emission of CFI directives.

Reviewers: asb, lenary
Reviewed By: lenary
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D69721
 2019-11-10 16:00:07 +00:00
Luis Marques 3d0fbafd0b [RISCV] Switch to the Machine Scheduler 
Most of the test changes are trivial instruction reorderings and differing
register allocations, without any obvious performance impact.

Differential Revision: https://reviews.llvm.org/D66973

llvm-svn: 372106
 2019-09-17 11:15:35 +00:00
Luis Marques 2d550d19b3 Revert Patch from Phabricator 
This reverts r372092 (git commit e38695a025)

llvm-svn: 372104
 2019-09-17 10:52:09 +00:00
Luis Marques e38695a025 Patch from Phabricator 
llvm-svn: 372092
 2019-09-17 09:43:08 +00:00
Hsiangkai Wang 04ddf39b44 [RISCV] Add CFI directives for RISCV prologue/epilog. 
In order to generate correct debug frame information, it needs to
generate CFI information in prologue and epilog.

Differential Revision: https://reviews.llvm.org/D61773

llvm-svn: 363120
 2019-06-12 03:04:22 +00:00