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[Driver] Make -fvectorize and -fslp-vectorize override -O group options #161032

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Merged
merged 2 commits into from
Sep 28, 2025
+7 −11
Merged

[Driver] Make -fvectorize and -fslp-vectorize override -O group options #161032

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cc983d9
[𝘀𝗽𝗿] initial version
MaskRay Sep 28, 2025
d124def
fix Ofast.c
MaskRay Sep 28, 2025
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12 changes: 4 additions & 8 deletions clang/lib/Driver/ToolChains/CommonArgs.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -3346,20 +3346,16 @@ bool tools::shouldEnableVectorizerAtOLevel(const ArgList &Args, bool isSlpVec) {
void tools::handleVectorizeLoopsArgs(const ArgList &Args,
ArgStringList &CmdArgs) {
bool EnableVec = shouldEnableVectorizerAtOLevel(Args, false);
OptSpecifier vectorizeAliasOption =
EnableVec ? options::OPT_O_Group : options::OPT_fvectorize;
if (Args.hasFlag(options::OPT_fvectorize, vectorizeAliasOption,
options::OPT_fno_vectorize, EnableVec))
if (Args.hasFlag(options::OPT_fvectorize, options::OPT_fno_vectorize,
EnableVec))
CmdArgs.push_back("-vectorize-loops");
}

void tools::handleVectorizeSLPArgs(const ArgList &Args,
ArgStringList &CmdArgs) {
bool EnableSLPVec = shouldEnableVectorizerAtOLevel(Args, true);
OptSpecifier SLPVectAliasOption =
EnableSLPVec ? options::OPT_O_Group : options::OPT_fslp_vectorize;
if (Args.hasFlag(options::OPT_fslp_vectorize, SLPVectAliasOption,
options::OPT_fno_slp_vectorize, EnableSLPVec))
if (Args.hasFlag(options::OPT_fslp_vectorize, options::OPT_fno_slp_vectorize,
EnableSLPVec))
CmdArgs.push_back("-vectorize-slp");
}

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2 changes: 1 addition & 1 deletion clang/test/Driver/Ofast.c
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Expand Up @@ -2,7 +2,7 @@
// RUN: %clang -c -O2 -Ofast -### %s 2>&1 | FileCheck -check-prefix=CHECK-OFAST %s
// RUN: %clang -c -fno-fast-math -Ofast -### %s 2>&1 | FileCheck -check-prefix=CHECK-OFAST %s
// RUN: %clang -c -fno-strict-aliasing -Ofast -### %s 2>&1 | FileCheck -check-prefix=CHECK-OFAST %s
// RUN: %clang -c -fno-vectorize -Ofast -### %s 2>&1 | FileCheck -check-prefix=CHECK-OFAST %s
// RUN: %clang -c -fno-vectorize -Ofast -### %s 2>&1 | FileCheck -check-prefix=CHECK-OFAST-NO-VECTORIZE %s
// RUN: %clang -c -Ofast -O2 -### -Werror %s 2>&1 | FileCheck -check-prefix=CHECK-OFAST-O2 \
// RUN: %if target={{.*-windows-msvc.*}} %{ --check-prefix=CHECK-OFAST-O2-ALIASING-MSVC %} \
// RUN: %else %{ --check-prefix=CHECK-OFAST-O2-ALIASING %} %s
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4 changes: 2 additions & 2 deletions clang/test/Driver/clang_f_opts.c
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Expand Up @@ -156,7 +156,7 @@
// RUN: %clang -### -S -O2 %s 2>&1 | FileCheck -check-prefix=CHECK-VECTORIZE %s
// RUN: %clang -### -S -Os %s 2>&1 | FileCheck -check-prefix=CHECK-VECTORIZE %s
// RUN: %clang -### -S -O3 %s 2>&1 | FileCheck -check-prefix=CHECK-VECTORIZE %s
// RUN: %clang -### -S -fno-vectorize -O3 %s 2>&1 | FileCheck -check-prefix=CHECK-VECTORIZE %s
// RUN: %clang -### -S -fno-vectorize -O3 %s 2>&1 | FileCheck -check-prefix=CHECK-NO-VECTORIZE %s
// RUN: %clang -### -S -O1 -fvectorize %s 2>&1 | FileCheck -check-prefix=CHECK-VECTORIZE %s
// RUN: %clang -### -S -Ofast %s 2>&1 | FileCheck -check-prefix=CHECK-VECTORIZE %s
// RUN: %clang -### -S %s 2>&1 | FileCheck -check-prefix=CHECK-NO-VECTORIZE %s
Expand All @@ -179,7 +179,7 @@
// RUN: %clang -### -S -Os %s 2>&1 | FileCheck -check-prefix=CHECK-SLP-VECTORIZE %s
// RUN: %clang -### -S -Oz %s 2>&1 | FileCheck -check-prefix=CHECK-SLP-VECTORIZE %s
// RUN: %clang -### -S -O3 %s 2>&1 | FileCheck -check-prefix=CHECK-SLP-VECTORIZE %s
// RUN: %clang -### -S -fno-slp-vectorize -O3 %s 2>&1 | FileCheck -check-prefix=CHECK-SLP-VECTORIZE %s
// RUN: %clang -### -S -fno-slp-vectorize -O3 %s 2>&1 | FileCheck -check-prefix=CHECK-NO-SLP-VECTORIZE %s
// RUN: %clang -### -S -O1 -fslp-vectorize %s 2>&1 | FileCheck -check-prefix=CHECK-SLP-VECTORIZE %s
// RUN: %clang -### -S -Ofast %s 2>&1 | FileCheck -check-prefix=CHECK-SLP-VECTORIZE %s
// RUN: %clang -### -S %s 2>&1 | FileCheck -check-prefix=CHECK-NO-SLP-VECTORIZE %s
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