zahiraam wrote:
@hubert-reinterpretcast Thanks for the reviews/suggestions. Let me know what
you think.
https://github.com/llvm/llvm-project/pull/88978
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@@ -14547,6 +14547,20 @@ bool FloatExprEvaluator::VisitCallExpr(const CallExpr
*E) {
default:
return false;
+ case Builtin::BI__builtin_frexp:
+ case Builtin::BI__builtin_frexpf:
+ case Builtin::BI__builtin_frexpl: {
+LValue Pointer;
+if
@@ -0,0 +1,59 @@
+// RUN: %clang_cc1 -x c++ -triple x86_64-unknown-unknown -std=c++23 \
+// RUN: -DWIN -emit-llvm -o - %s | FileCheck %s --check-prefixes=WIN
+
+// RUN: %clang_cc1 -x c++ -triple x86_64-unknown-unknown -std=c++23 \
+// RUN: -emit-llvm -o - %s | FileCheck %s
https://github.com/zahiraam updated
https://github.com/llvm/llvm-project/pull/88978
>From 3acc848f4fcc68445dfc849f9c6f8d384d3692af Mon Sep 17 00:00:00 2001
From: Zahira Ammarguellat
Date: Tue, 16 Apr 2024 13:09:58 -0700
Subject: [PATCH 1/4] Adding C23 constexpr math functions fmin and frexp.
@@ -0,0 +1,38 @@
+// RUN: %clang_cc1 -DWIN -verify -std=c++23 -fsyntax-only %s
+// RUN: %clang_cc1 -verify -std=c++23 -fsyntax-only %s
+
+// expected-no-diagnostics
+
+
+#ifdef WIN
+#define INFINITY ((float)(1e+300 * 1e+300))
+#define NAN (-(float)(INFINITY * 0.0F))
+#else
@@ -0,0 +1,59 @@
+// RUN: %clang_cc1 -x c++ -triple x86_64-unknown-unknown -std=c++23 \
+// RUN: -DWIN -emit-llvm -o - %s | FileCheck %s --check-prefixes=WIN
+
+// RUN: %clang_cc1 -x c++ -triple x86_64-unknown-unknown -std=c++23 \
+// RUN: -emit-llvm -o - %s | FileCheck %s
@@ -0,0 +1,59 @@
+// RUN: %clang_cc1 -x c++ -triple x86_64-unknown-unknown -std=c++23 \
+// RUN: -DWIN -emit-llvm -o - %s | FileCheck %s --check-prefixes=WIN
+
+// RUN: %clang_cc1 -x c++ -triple x86_64-unknown-unknown -std=c++23 \
+// RUN: -emit-llvm -o - %s | FileCheck %s
@@ -0,0 +1,59 @@
+// RUN: %clang_cc1 -x c++ -triple x86_64-unknown-unknown -std=c++23 \
+// RUN: -DWIN -emit-llvm -o - %s | FileCheck %s --check-prefixes=WIN
+
+// RUN: %clang_cc1 -x c++ -triple x86_64-unknown-unknown -std=c++23 \
+// RUN: -emit-llvm -o - %s | FileCheck %s
@@ -0,0 +1,38 @@
+// RUN: %clang_cc1 -DWIN -verify -std=c++23 -fsyntax-only %s
+// RUN: %clang_cc1 -verify -std=c++23 -fsyntax-only %s
+
+// expected-no-diagnostics
+
+
+#ifdef WIN
+#define INFINITY ((float)(1e+300 * 1e+300))
+#define NAN (-(float)(INFINITY * 0.0F))
+#else
@@ -0,0 +1,38 @@
+// RUN: %clang_cc1 -DWIN -verify -std=c++23 -fsyntax-only %s
+// RUN: %clang_cc1 -verify -std=c++23 -fsyntax-only %s
+
+// expected-no-diagnostics
+
+
+#ifdef WIN
+#define INFINITY ((float)(1e+300 * 1e+300))
+#define NAN (-(float)(INFINITY * 0.0F))
+#else
@@ -0,0 +1,59 @@
+// RUN: %clang_cc1 -x c++ -triple x86_64-unknown-unknown -std=c++23 \
+// RUN: -DWIN -emit-llvm -o - %s | FileCheck %s --check-prefixes=WIN
+
+// RUN: %clang_cc1 -x c++ -triple x86_64-unknown-unknown -std=c++23 \
+// RUN: -emit-llvm -o - %s | FileCheck %s
@@ -0,0 +1,38 @@
+// RUN: %clang_cc1 -DWIN -verify -std=c++23 -fsyntax-only %s
+// RUN: %clang_cc1 -verify -std=c++23 -fsyntax-only %s
+
+// expected-no-diagnostics
+
+
+#ifdef WIN
+#define INFINITY ((float)(1e+300 * 1e+300))
+#define NAN (-(float)(INFINITY * 0.0F))
+#else
@@ -14547,6 +14547,20 @@ bool FloatExprEvaluator::VisitCallExpr(const CallExpr
*E) {
default:
return false;
+ case Builtin::BI__builtin_frexp:
+ case Builtin::BI__builtin_frexpf:
+ case Builtin::BI__builtin_frexpl: {
+LValue Pointer;
+if
https://github.com/hubert-reinterpretcast edited
https://github.com/llvm/llvm-project/pull/88978
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@@ -0,0 +1,57 @@
+// RUN: %clang_cc1 -DWIN -verify -std=c++23 -fsyntax-only %s
+// RUN: %clang_cc1 -verify -std=c++23 -fsyntax-only %s
+
+// expected-no-diagnostics
+
+
+#ifdef WIN
+#define INFINITY ((float)(1e+300 * 1e+300))
+#define NAN (-(float)(INFINITY * 0.0F))
+#else
github-actions[bot] wrote:
:warning: C/C++ code formatter, clang-format found issues in your code.
:warning:
You can test this locally with the following command:
``bash
git-clang-format --diff a3efc53f168b1451803a40075201c3490d6e3928
625028aed5ad85922f082f5192abd5ceedb0b68d --
@@ -0,0 +1,57 @@
+// RUN: %clang_cc1 -DWIN -verify -std=c++23 -fsyntax-only %s
+// RUN: %clang_cc1 -verify -std=c++23 -fsyntax-only %s
+
+// expected-no-diagnostics
+
+
+#ifdef WIN
+#define INFINITY ((float)(1e+300 * 1e+300))
+#define NAN (-(float)(INFINITY * 0.0F))
+#else
https://github.com/zahiraam updated
https://github.com/llvm/llvm-project/pull/88978
>From 3acc848f4fcc68445dfc849f9c6f8d384d3692af Mon Sep 17 00:00:00 2001
From: Zahira Ammarguellat
Date: Tue, 16 Apr 2024 13:09:58 -0700
Subject: [PATCH 1/3] Adding C23 constexpr math functions fmin and frexp.
@@ -0,0 +1,57 @@
+// RUN: %clang_cc1 -DWIN -verify -std=c++23 -fsyntax-only %s
+// RUN: %clang_cc1 -verify -std=c++23 -fsyntax-only %s
+
+// expected-no-diagnostics
+
+
+#ifdef WIN
+#define INFINITY ((float)(1e+300 * 1e+300))
+#define NAN (-(float)(INFINITY * 0.0F))
+#else
https://github.com/hubert-reinterpretcast edited
https://github.com/llvm/llvm-project/pull/88978
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@@ -0,0 +1,57 @@
+// RUN: %clang_cc1 -DWIN -verify -std=c++23 -fsyntax-only %s
+// RUN: %clang_cc1 -verify -std=c++23 -fsyntax-only %s
+
+// expected-no-diagnostics
+
+
+#ifdef WIN
+#define INFINITY ((float)(1e+300 * 1e+300))
+#define NAN (-(float)(INFINITY * 0.0F))
+#else
@@ -14638,6 +14649,8 @@ bool FloatExprEvaluator::VisitCallExpr(const CallExpr
*E) {
return true;
}
+ case Builtin::BIfmin:
+ case Builtin::BIfminf:
hubert-reinterpretcast wrote:
I think we'll be missing at least "pedantic" diagnostics if we don't
@@ -14638,6 +14649,8 @@ bool FloatExprEvaluator::VisitCallExpr(const CallExpr
*E) {
return true;
}
+ case Builtin::BIfmin:
+ case Builtin::BIfminf:
hubert-reinterpretcast wrote:
> How would that help?
I guess it doesn't... The functions would be
https://github.com/zahiraam edited
https://github.com/llvm/llvm-project/pull/88978
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https://github.com/zahiraam edited
https://github.com/llvm/llvm-project/pull/88978
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@@ -0,0 +1,57 @@
+// RUN: %clang_cc1 -DWIN -verify -std=c++23 -fsyntax-only %s
+// RUN: %clang_cc1 -verify -std=c++23 -fsyntax-only %s
+
+// expected-no-diagnostics
+
+
+#ifdef WIN
+#define INFINITY ((float)(1e+300 * 1e+300))
+#define NAN (-(float)(INFINITY * 0.0F))
+#else
@@ -14638,6 +14649,8 @@ bool FloatExprEvaluator::VisitCallExpr(const CallExpr
*E) {
return true;
}
+ case Builtin::BIfmin:
+ case Builtin::BIfminf:
philnik777 wrote:
How would that help?
https://github.com/llvm/llvm-project/pull/88978
@@ -14638,6 +14649,8 @@ bool FloatExprEvaluator::VisitCallExpr(const CallExpr
*E) {
return true;
}
+ case Builtin::BIfmin:
+ case Builtin::BIfminf:
hubert-reinterpretcast wrote:
Makes me wonder how far C++ stdlibs will get if they included the C
@@ -14638,6 +14649,8 @@ bool FloatExprEvaluator::VisitCallExpr(const CallExpr
*E) {
return true;
}
+ case Builtin::BIfmin:
+ case Builtin::BIfminf:
philnik777 wrote:
These have to be made `constexpr`, at least in C++23. C++ stdlibs can't
override
@@ -0,0 +1,55 @@
+// RUN: %clang_cc1 -x c++ -triple x86_64-unknown-unknown -std=c++23 \
+// RUN: -DWIN -emit-llvm -o - %s | FileCheck %s --check-prefixes=WIN
+
+// RUN: %clang_cc1 -x c++ -triple x86_64-unknown-unknown -std=c++23 \
+// RUN: -emit-llvm -o - %s | FileCheck %s
@@ -3440,7 +3440,7 @@ def Fmod : FPMathTemplate, LibBuiltin<"math.h"> {
def Frexp : FPMathTemplate, LibBuiltin<"math.h"> {
let Spellings = ["frexp"];
- let Attributes = [NoThrow];
+ let Attributes = [NoThrow, Constexpr];
let Prototype = "T(T, int*)";
let
@@ -0,0 +1,57 @@
+// RUN: %clang_cc1 -DWIN -verify -std=c++23 -fsyntax-only %s
+// RUN: %clang_cc1 -verify -std=c++23 -fsyntax-only %s
+
+// expected-no-diagnostics
+
+
+#ifdef WIN
+#define INFINITY ((float)(1e+300 * 1e+300))
+#define NAN (-(float)(INFINITY * 0.0F))
+#else
@@ -14638,6 +14649,8 @@ bool FloatExprEvaluator::VisitCallExpr(const CallExpr
*E) {
return true;
}
+ case Builtin::BIfmin:
+ case Builtin::BIfminf:
hubert-reinterpretcast wrote:
Don't make these evaluate in `constexpr`. Not only does this extend C
@@ -14547,6 +14547,17 @@ bool FloatExprEvaluator::VisitCallExpr(const CallExpr
*E) {
default:
return false;
+ case Builtin::BI__builtin_frexpf:
+ case Builtin::BI__builtin_frexp: {
hubert-reinterpretcast wrote:
Why no `long double`?
https://github.com/hubert-reinterpretcast requested changes to this pull
request.
https://github.com/llvm/llvm-project/pull/88978
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@@ -0,0 +1,57 @@
+// RUN: %clang_cc1 -DWIN -verify -std=c++23 -fsyntax-only %s
+// RUN: %clang_cc1 -verify -std=c++23 -fsyntax-only %s
+
+// expected-no-diagnostics
+
+
+#ifdef WIN
+#define INFINITY ((float)(1e+300 * 1e+300))
+#define NAN (-(float)(INFINITY * 0.0F))
+#else
@@ -14547,6 +14547,17 @@ bool FloatExprEvaluator::VisitCallExpr(const CallExpr
*E) {
default:
return false;
+ case Builtin::BI__builtin_frexpf:
+ case Builtin::BI__builtin_frexp: {
+LValue Pointer;
+if (!EvaluateFloat(E->getArg(0), Result, Info) ||
+
https://github.com/hubert-reinterpretcast edited
https://github.com/llvm/llvm-project/pull/88978
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@@ -2922,7 +2922,7 @@ static bool handleFloatFloatBinOp(EvalInfo , const
BinaryOperator *E,
// If during the evaluation of an expression, the result is not
// mathematically defined [...], the behavior is undefined.
// FIXME: C++ rules require us to not conform to
@@ -2922,7 +2922,7 @@ static bool handleFloatFloatBinOp(EvalInfo , const
BinaryOperator *E,
// If during the evaluation of an expression, the result is not
// mathematically defined [...], the behavior is undefined.
// FIXME: C++ rules require us to not conform to
@@ -2922,7 +2922,7 @@ static bool handleFloatFloatBinOp(EvalInfo , const
BinaryOperator *E,
// If during the evaluation of an expression, the result is not
// mathematically defined [...], the behavior is undefined.
// FIXME: C++ rules require us to not conform to
@@ -2922,7 +2922,7 @@ static bool handleFloatFloatBinOp(EvalInfo , const
BinaryOperator *E,
// If during the evaluation of an expression, the result is not
// mathematically defined [...], the behavior is undefined.
// FIXME: C++ rules require us to not conform to
@@ -2922,7 +2922,7 @@ static bool handleFloatFloatBinOp(EvalInfo , const
BinaryOperator *E,
// If during the evaluation of an expression, the result is not
// mathematically defined [...], the behavior is undefined.
// FIXME: C++ rules require us to not conform to
@@ -2922,7 +2922,7 @@ static bool handleFloatFloatBinOp(EvalInfo , const
BinaryOperator *E,
// If during the evaluation of an expression, the result is not
// mathematically defined [...], the behavior is undefined.
// FIXME: C++ rules require us to not conform to
https://github.com/jcranmer-intel commented:
Other side notes:
fmin and frexp can signal exceptions if the input is an sNaN, which causes
[library.c]p3 to kick in. (That's the only time these operations can signal an
exception.)
https://github.com/llvm/llvm-project/pull/88978
@@ -2922,7 +2922,7 @@ static bool handleFloatFloatBinOp(EvalInfo , const
BinaryOperator *E,
// If during the evaluation of an expression, the result is not
// mathematically defined [...], the behavior is undefined.
// FIXME: C++ rules require us to not conform to
@@ -2922,7 +2922,7 @@ static bool handleFloatFloatBinOp(EvalInfo , const
BinaryOperator *E,
// If during the evaluation of an expression, the result is not
// mathematically defined [...], the behavior is undefined.
// FIXME: C++ rules require us to not conform to
@@ -2922,7 +2922,7 @@ static bool handleFloatFloatBinOp(EvalInfo , const
BinaryOperator *E,
// If during the evaluation of an expression, the result is not
// mathematically defined [...], the behavior is undefined.
// FIXME: C++ rules require us to not conform to
@@ -2922,7 +2922,7 @@ static bool handleFloatFloatBinOp(EvalInfo , const
BinaryOperator *E,
// If during the evaluation of an expression, the result is not
// mathematically defined [...], the behavior is undefined.
// FIXME: C++ rules require us to not conform to
@@ -2922,7 +2922,7 @@ static bool handleFloatFloatBinOp(EvalInfo , const
BinaryOperator *E,
// If during the evaluation of an expression, the result is not
// mathematically defined [...], the behavior is undefined.
// FIXME: C++ rules require us to not conform to
llvmbot wrote:
@llvm/pr-subscribers-clang
Author: Zahira Ammarguellat (zahiraam)
Changes
Add support for for fmin and frexp.
---
Full diff: https://github.com/llvm/llvm-project/pull/88978.diff
4 Files Affected:
- (modified) clang/include/clang/Basic/Builtins.td (+2-2)
- (modified)
https://github.com/zahiraam ready_for_review
https://github.com/llvm/llvm-project/pull/88978
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@@ -2922,7 +2922,7 @@ static bool handleFloatFloatBinOp(EvalInfo , const
BinaryOperator *E,
// If during the evaluation of an expression, the result is not
// mathematically defined [...], the behavior is undefined.
// FIXME: C++ rules require us to not conform to
https://github.com/zahiraam updated
https://github.com/llvm/llvm-project/pull/88978
>From 3acc848f4fcc68445dfc849f9c6f8d384d3692af Mon Sep 17 00:00:00 2001
From: Zahira Ammarguellat
Date: Tue, 16 Apr 2024 13:09:58 -0700
Subject: [PATCH 1/2] Adding C23 constexpr math functions fmin and frexp.
https://github.com/zahiraam edited
https://github.com/llvm/llvm-project/pull/88978
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@@ -2922,7 +2922,7 @@ static bool handleFloatFloatBinOp(EvalInfo , const
BinaryOperator *E,
// If during the evaluation of an expression, the result is not
// mathematically defined [...], the behavior is undefined.
// FIXME: C++ rules require us to not conform to
@@ -0,0 +1,51 @@
+// RUN: %clang_cc1 -x c++ -triple x86_64-unknown-unknown -std=c++23 \
+// RUN: -emit-llvm -o - %s | FileCheck %s
+
+// RUN %clang_cc1 -x c++ -triple x86_64-linux-gnu -emit-llvm -o - %s \
+// RUN -std=c++23
+
+#define INFINITY ((float)(1e+300 * 1e+300))
+#define
@@ -2922,7 +2922,7 @@ static bool handleFloatFloatBinOp(EvalInfo , const
BinaryOperator *E,
// If during the evaluation of an expression, the result is not
// mathematically defined [...], the behavior is undefined.
// FIXME: C++ rules require us to not conform to
@@ -2922,7 +2922,7 @@ static bool handleFloatFloatBinOp(EvalInfo , const
BinaryOperator *E,
// If during the evaluation of an expression, the result is not
// mathematically defined [...], the behavior is undefined.
// FIXME: C++ rules require us to not conform to
@@ -14547,6 +14547,18 @@ bool FloatExprEvaluator::VisitCallExpr(const CallExpr
*E) {
default:
return false;
+ case Builtin::BI__builtin_frexpf:
+ case Builtin::BI__builtin_frexp: {
+LValue Pointer;
+if (!EvaluateFloat(E->getArg(0), Result, Info) ||
+
@@ -0,0 +1,51 @@
+// RUN: %clang_cc1 -x c++ -triple x86_64-unknown-unknown -std=c++23 \
+// RUN: -emit-llvm -o - %s | FileCheck %s
+
+// RUN %clang_cc1 -x c++ -triple x86_64-linux-gnu -emit-llvm -o - %s \
+// RUN -std=c++23
+
+#define INFINITY ((float)(1e+300 * 1e+300))
+#define
@@ -14547,6 +14547,18 @@ bool FloatExprEvaluator::VisitCallExpr(const CallExpr
*E) {
default:
return false;
+ case Builtin::BI__builtin_frexpf:
tbaederr wrote:
Not doing that is fine for now.
https://github.com/llvm/llvm-project/pull/88978
https://github.com/zahiraam edited
https://github.com/llvm/llvm-project/pull/88978
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