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[AMDGPU][True16][Clang] support true16 target feature in clang driver #133298

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[AMDGPU][True16][Clang] support true16 target feature in clang driver #133298

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3 changes: 3 additions & 0 deletions clang/include/clang/Driver/Options.td
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Original file line number Diff line number Diff line change
Expand Up @@ -5182,6 +5182,9 @@ defm wavefrontsize64 : SimpleMFlag<"wavefrontsize64",
defm amdgpu_precise_memory_op
: SimpleMFlag<"amdgpu-precise-memory-op", "Enable", "Disable",
" precise memory mode (AMDGPU only)">;
defm real_true16: SimpleMFlag<"real-true16",
"enable real-true16 in GFX11Plus", "enable real-true16 mode",
" real-true16 mode (AMDGPU only)">;

def munsafe_fp_atomics : Flag<["-"], "munsafe-fp-atomics">,
Visibility<[ClangOption, CC1Option]>, Alias<fatomic_ignore_denormal_mode>;
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4 changes: 4 additions & 0 deletions clang/lib/Driver/ToolChains/AMDGPU.cpp
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Expand Up @@ -707,6 +707,10 @@ void amdgpu::getAMDGPUTargetFeatures(const Driver &D,
options::OPT_mno_amdgpu_precise_memory_op, false))
Features.push_back("+precise-memory");

if (Args.hasFlag(options::OPT_mreal_true16, options::OPT_mno_real_true16,
false))
Features.push_back("+real-true16");

handleTargetFeaturesGroup(D, Triple, Args, Features,
options::OPT_m_amdgpu_Features_Group);
}
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5 changes: 5 additions & 0 deletions clang/test/Driver/amdgpu-features.c
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Expand Up @@ -38,3 +38,8 @@

// RUN: %clang -### -target amdgcn -mcpu=gfx1010 -mno-amdgpu-precise-memory-op %s 2>&1 | FileCheck --check-prefix=NO-PREC-MEM %s
// NO-PREC-MEM-NOT: {{".*precise-memory"}}

// RUN: %clang -### -target amdgcn -mcpu=gfx1100 -mreal-true16 %s 2>&1 | FileCheck --check-prefix=REAL16 %s
// RUN: %clang -### -target amdgcn -mcpu=gfx1100 -mno-real-true16 %s 2>&1 | FileCheck --check-prefix=NO-REAL16 %s
// REAL16: "-target-feature" "+real-true16"
// NO-REAL16-NOT: {{".*real-true16"}}