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Differential D38168

[mips] Accept but ignore -m(no-)branch-likely
ClosedPublic

Authored by sdardis on Sep 22 2017, 2:16 AM.

Details

Reviewers
atanasyan
nitesh.jain
Commits
rGef41f6a57328: [mips] Accept but ignore -m(no-)branch-likely
rC314213: [mips] Accept but ignore -m(no-)branch-likely
rL314213: [mips] Accept but ignore -m(no-)branch-likely
Summary

-mbranch-likely and -mno-branch-likely are used in some build systems for
some MIPS targets. Accept these options but ignore them as they are an
(de)optimiztion hint, and that branch likely instructions were deprecated
but not removed from MIPS32 and MIPS64 ISAs.

Diff Detail

Repository
rL LLVM

Revision Contents

PathSize
cfe/
trunk/
include/
clang/
Driver/
4 lines
test/
Driver/
10 lines

Diff 116723

cfe/trunk/include/clang/Driver/Options.td

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def mxgot : Flag<["-"], "mxgot">, Group<m_Group>; def mxgot : Flag<["-"], "mxgot">, Group<m_Group>;
def mno_xgot : Flag<["-"], "mno-xgot">, Group<m_Group>; def mno_xgot : Flag<["-"], "mno-xgot">, Group<m_Group>;
def mldc1_sdc1 : Flag<["-"], "mldc1-sdc1">, Group<m_Group>; def mldc1_sdc1 : Flag<["-"], "mldc1-sdc1">, Group<m_Group>;
def mno_ldc1_sdc1 : Flag<["-"], "mno-ldc1-sdc1">, Group<m_Group>; def mno_ldc1_sdc1 : Flag<["-"], "mno-ldc1-sdc1">, Group<m_Group>;
def mcheck_zero_division : Flag<["-"], "mcheck-zero-division">, Group<m_Group>; def mcheck_zero_division : Flag<["-"], "mcheck-zero-division">, Group<m_Group>;
def mno_check_zero_division : Flag<["-"], "mno-check-zero-division">, def mno_check_zero_division : Flag<["-"], "mno-check-zero-division">,
Group<m_Group>; Group<m_Group>;
def mcompact_branches_EQ : Joined<["-"], "mcompact-branches=">, Group<m_Group>; def mcompact_branches_EQ : Joined<["-"], "mcompact-branches=">, Group<m_Group>;
def mbranch_likely : Flag<["-"], "mbranch-likely">, Group<m_Group>,
IgnoredGCCCompat;
def mno_branch_likely : Flag<["-"], "mno-branch-likely">, Group<m_Group>,
IgnoredGCCCompat;
def mdsp : Flag<["-"], "mdsp">, Group<m_Group>; def mdsp : Flag<["-"], "mdsp">, Group<m_Group>;
def mno_dsp : Flag<["-"], "mno-dsp">, Group<m_Group>; def mno_dsp : Flag<["-"], "mno-dsp">, Group<m_Group>;
def mdspr2 : Flag<["-"], "mdspr2">, Group<m_Group>; def mdspr2 : Flag<["-"], "mdspr2">, Group<m_Group>;
def mno_dspr2 : Flag<["-"], "mno-dspr2">, Group<m_Group>; def mno_dspr2 : Flag<["-"], "mno-dspr2">, Group<m_Group>;
def msingle_float : Flag<["-"], "msingle-float">, Group<m_Group>; def msingle_float : Flag<["-"], "msingle-float">, Group<m_Group>;
def mdouble_float : Flag<["-"], "mdouble-float">, Group<m_Group>; def mdouble_float : Flag<["-"], "mdouble-float">, Group<m_Group>;
def mmadd4 : Flag<["-"], "mmadd4">, Group<m_Group>, def mmadd4 : Flag<["-"], "mmadd4">, Group<m_Group>,
HelpText<"Enable the generation of 4-operand madd.s, madd.d and related instructions.">; HelpText<"Enable the generation of 4-operand madd.s, madd.d and related instructions.">;
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cfe/trunk/test/Driver/mips-features.c

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// RUN: | FileCheck --check-prefix=LONG-CALLS-OFF %s // RUN: | FileCheck --check-prefix=LONG-CALLS-OFF %s
// RUN: %clang -target mips-img-linux-gnu -### -c %s 2>&1 \ // RUN: %clang -target mips-img-linux-gnu -### -c %s 2>&1 \
// RUN: | FileCheck --check-prefix=LONG-CALLS-DEF %s // RUN: | FileCheck --check-prefix=LONG-CALLS-DEF %s
// RUN: %clang -target mips-img-linux-gnu -### -c %s -mlong-calls 2>&1 \ // RUN: %clang -target mips-img-linux-gnu -### -c %s -mlong-calls 2>&1 \
// RUN: | FileCheck --check-prefix=LONG-CALLS-DEF %s // RUN: | FileCheck --check-prefix=LONG-CALLS-DEF %s
// LONG-CALLS-ON: "-target-feature" "+long-calls" // LONG-CALLS-ON: "-target-feature" "+long-calls"
// LONG-CALLS-OFF: "-target-feature" "-long-calls" // LONG-CALLS-OFF: "-target-feature" "-long-calls"
// LONG-CALLS-DEF-NOT: "long-calls" // LONG-CALLS-DEF-NOT: "long-calls"
//
// -mbranch-likely
// RUN: %clang -target -mips-mti-linux-gnu -### -c %s -mbranch-likely 2>&1 \
// RUN: | FileCheck --check-prefix=BRANCH-LIKELY %s
// BRANCH-LIKELY: argument unused during compilation: '-mbranch-likely'
//
// -mno-branch-likely
// RUN: %clang -target -mips-mti-linux-gnu -### -c %s -mno-branch-likely 2>&1 \
// RUN: | FileCheck --check-prefix=NO-BRANCH-LIKELY %s
// NO-BRANCH-LIKELY: argument unused during compilation: '-mno-branch-likely'