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[AMDGPU] Allow the __builtin_flt_rounds functions on AMDGPU #90994

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Merged
merged 1 commit into from
May 3, 2024
Merged

[AMDGPU] Allow the __builtin_flt_rounds functions on AMDGPU #90994

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16 changes: 8 additions & 8 deletions clang/lib/Sema/SemaChecking.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -2535,18 +2535,18 @@ Sema::CheckBuiltinFunctionCall(FunctionDecl *FDecl, unsigned BuiltinID,
case Builtin::BI_bittestandset64:
case Builtin::BI_interlockedbittestandreset64:
case Builtin::BI_interlockedbittestandset64:
if (CheckBuiltinTargetInSupported(*this, BuiltinID, TheCall,
{llvm::Triple::x86_64, llvm::Triple::arm,
llvm::Triple::thumb,
llvm::Triple::aarch64}))
if (CheckBuiltinTargetInSupported(
*this, BuiltinID, TheCall,
{llvm::Triple::x86_64, llvm::Triple::arm, llvm::Triple::thumb,
llvm::Triple::aarch64, llvm::Triple::amdgcn}))
return ExprError();
break;

case Builtin::BI__builtin_set_flt_rounds:
if (CheckBuiltinTargetInSupported(*this, BuiltinID, TheCall,
{llvm::Triple::x86, llvm::Triple::x86_64,
llvm::Triple::arm, llvm::Triple::thumb,
llvm::Triple::aarch64}))
if (CheckBuiltinTargetInSupported(
*this, BuiltinID, TheCall,
{llvm::Triple::x86, llvm::Triple::x86_64, llvm::Triple::arm,
llvm::Triple::thumb, llvm::Triple::aarch64, llvm::Triple::amdgcn}))
return ExprError();
break;

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12 changes: 12 additions & 0 deletions clang/test/CodeGenOpenCL/builtins-amdgcn.cl
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Original file line number Diff line number Diff line change
Expand Up @@ -839,6 +839,18 @@ unsigned test_wavefrontsize() {
return __builtin_amdgcn_wavefrontsize();
}

// CHECK-LABEL test_flt_rounds(
unsigned test_flt_rounds() {

// CHECK: call i32 @llvm.get.rounding()
unsigned mode = __builtin_flt_rounds();

// CHECK: call void @llvm.set.rounding(i32 %0)
__builtin_set_flt_rounds(mode);

return mode;
}

// CHECK-LABEL test_get_fpenv(
unsigned long test_get_fpenv() {
// CHECK: call i64 @llvm.get.fpenv.i64()
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