llvm-project

Commit Graph

Author	SHA1	Message	Date
Matthias Braun	6b898beb8e	X86: Do not use llc -march in tests. `llc -march` is problematic because it only switches the target architecture, but leaves the operating system unchanged. This occasionally leads to indeterministic tests because the OS from LLVM_DEFAULT_TARGET_TRIPLE is used. However we can simply always use `llc -mtriple` instead. This changes all the tests to do this to avoid people using -march when they copy and paste parts of tests. See also the discussion in https://reviews.llvm.org/D35287 llvm-svn: 309774	2017-08-02 00:28:10 +00:00
Reid Kleckner	fb69308568	Implement X86 code generation for musttail Currently, musttail codegen is relying on sibcall optimization, and reporting a fatal error if fails. Sibcall optimization fails when stack arguments need to be modified, which is insufficient for musttail. The logic for moving arguments in memory safely is already implemented for GuaranteedTailCallOpt. This change merely arranges for musttail calls to use it. No functional change for GuaranteedTailCallOpt. Reviewers: espindola Differential Revision: http://reviews.llvm.org/D3493 llvm-svn: 207598	2014-04-29 23:55:41 +00:00
Reid Kleckner	5772b77789	Add 'musttail' marker to call instructions This is similar to the 'tail' marker, except that it guarantees that tail call optimization will occur. It also comes with convervative IR verification rules that ensure that tail call optimization is possible. Reviewers: nicholas Differential Revision: http://llvm-reviews.chandlerc.com/D3240 llvm-svn: 207143	2014-04-24 20:14:34 +00:00

Author

SHA1

Message

Date

Matthias Braun

6b898beb8e

X86: Do not use llc -march in tests.

`llc -march` is problematic because it only switches the target
architecture, but leaves the operating system unchanged. This
occasionally leads to indeterministic tests because the OS from
LLVM_DEFAULT_TARGET_TRIPLE is used.

However we can simply always use `llc -mtriple` instead. This changes
all the tests to do this to avoid people using -march when they copy and
paste parts of tests.

See also the discussion in https://reviews.llvm.org/D35287

llvm-svn: 309774

2017-08-02 00:28:10 +00:00

Reid Kleckner

fb69308568

Implement X86 code generation for musttail

Currently, musttail codegen is relying on sibcall optimization, and
reporting a fatal error if fails.  Sibcall optimization fails when stack
arguments need to be modified, which is insufficient for musttail.

The logic for moving arguments in memory safely is already implemented
for GuaranteedTailCallOpt.  This change merely arranges for musttail
calls to use it.

No functional change for GuaranteedTailCallOpt.

Reviewers: espindola

Differential Revision: http://reviews.llvm.org/D3493

llvm-svn: 207598

2014-04-29 23:55:41 +00:00

Reid Kleckner

5772b77789

Add 'musttail' marker to call instructions

This is similar to the 'tail' marker, except that it guarantees that
tail call optimization will occur.  It also comes with convervative IR
verification rules that ensure that tail call optimization is possible.

Reviewers: nicholas

Differential Revision: http://llvm-reviews.chandlerc.com/D3240

llvm-svn: 207143

2014-04-24 20:14:34 +00:00

3 Commits