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[PowerPC] Support set_flt_rounds builtin #73750

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Merged
merged 1 commit into from
Nov 4, 2024
Merged

[PowerPC] Support set_flt_rounds builtin #73750

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6 changes: 3 additions & 3 deletions clang/docs/LanguageExtensions.rst
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Expand Up @@ -3919,9 +3919,9 @@ standard:
- ``4`` - to nearest, ties away from zero
The effect of passing some other value to ``__builtin_flt_rounds`` is
implementation-defined. ``__builtin_set_flt_rounds`` is currently only supported
to work on x86, x86_64, Arm and AArch64 targets. These builtins read and modify
the floating-point environment, which is not always allowed and may have unexpected
behavior. Please see the section on `Accessing the floating point environment <https://clang.llvm.org/docs/UsersManual.html#accessing-the-floating-point-environment>`_ for more information.
to work on x86, x86_64, powerpc, powerpc64, Arm and AArch64 targets. These builtins
read and modify the floating-point environment, which is not always allowed and may
have unexpected behavior. Please see the section on `Accessing the floating point environment <https://clang.llvm.org/docs/UsersManual.html#accessing-the-floating-point-environment>`_ for more information.

String builtins
---------------
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4 changes: 3 additions & 1 deletion clang/lib/Sema/SemaChecking.cpp
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Expand Up @@ -2212,7 +2212,9 @@ Sema::CheckBuiltinFunctionCall(FunctionDecl *FDecl, unsigned BuiltinID,
if (CheckBuiltinTargetInSupported(
*this, TheCall,
{llvm::Triple::x86, llvm::Triple::x86_64, llvm::Triple::arm,
llvm::Triple::thumb, llvm::Triple::aarch64, llvm::Triple::amdgcn}))
llvm::Triple::thumb, llvm::Triple::aarch64, llvm::Triple::amdgcn,
llvm::Triple::ppc, llvm::Triple::ppc64, llvm::Triple::ppcle,
llvm::Triple::ppc64le}))
return ExprError();
break;

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3 changes: 3 additions & 0 deletions clang/test/CodeGen/builtin_set_flt_rounds.c
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Expand Up @@ -2,6 +2,9 @@
// RUN: %clang_cc1 -triple x86_64-windows-msvc %s -emit-llvm -o - | FileCheck %s
// RUN: %clang_cc1 -triple aarch64-gnu-linux %s -emit-llvm -o - | FileCheck %s
// RUN: %clang_cc1 -triple aarch64-windows-msvc %s -emit-llvm -o - | FileCheck %s
// RUN: %clang_cc1 -triple powerpc64le-unknown-linux-gnu %s -emit-llvm -o - | FileCheck %s
// RUN: %clang_cc1 -triple powerpc64-ibm-aix %s -emit-llvm -o - | FileCheck %s
// RUN: %clang_cc1 -triple powerpc-ibm-aix %s -emit-llvm -o - | FileCheck %s
void test_builtin_set_flt_rounds() {
__builtin_set_flt_rounds(1);
// CHECK: call void @llvm.set.rounding(i32 1)
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