[PATCH] D22067: [OpenCL] Add missing -cl-no-signed-zeros option into driver
Aaron En Ye Shi via cfe-commits
cfe-commits at lists.llvm.org
Thu Jul 7 14:47:11 PDT 2016
ashi1 added a reviewer: yaxunl.
ashi1 removed rL LLVM as the repository for this revision.
ashi1 updated this revision to Diff 63143.
ashi1 added a comment.
Revised base on Sam's comments.
Added no-signed-zeros as an attribute no-signed-zeros-fp-math.
Added a test for no-signed-zeros-fp-math.
http://reviews.llvm.org/D22067
Files:
include/clang/Driver/Options.td
lib/CodeGen/CGCall.cpp
lib/Driver/Tools.cpp
lib/Frontend/CompilerInvocation.cpp
test/CodeGenOpenCL/no-signed-zeros.cl
test/Driver/opencl.cl
Index: test/Driver/opencl.cl
===================================================================
--- test/Driver/opencl.cl
+++ test/Driver/opencl.cl
@@ -14,6 +14,7 @@
// RUN: %clang -S -### -cl-unsafe-math-optimizations %s | FileCheck --check-prefix=CHECK-UNSAFE-MATH-OPT %s
// RUN: %clang -S -### -cl-fast-relaxed-math %s | FileCheck --check-prefix=CHECK-FAST-RELAXED-MATH %s
// RUN: %clang -S -### -cl-mad-enable %s | FileCheck --check-prefix=CHECK-MAD-ENABLE %s
+// RUN: %clang -S -### -cl-no-signed-zeros %s | FileCheck --check-prefix=CHECK-NO-SIGNED-ZEROS %s
// RUN: %clang -S -### -cl-denorms-are-zero %s | FileCheck --check-prefix=CHECK-DENORMS-ARE-ZERO %s
// RUN: not %clang_cc1 -cl-std=c99 -DOPENCL %s 2>&1 | FileCheck --check-prefix=CHECK-C99 %s
// RUN: not %clang_cc1 -cl-std=invalid -DOPENCL %s 2>&1 | FileCheck --check-prefix=CHECK-INVALID %s
@@ -33,6 +34,7 @@
// CHECK-UNSAFE-MATH-OPT: .*clang.* "-cc1" .* "-cl-unsafe-math-optimizations"
// CHECK-FAST-RELAXED-MATH: .*clang.* "-cc1" .* "-cl-fast-relaxed-math"
// CHECK-MAD-ENABLE: .*clang.* "-cc1" .* "-cl-mad-enable"
+// CHECK-NO-SIGNED-ZEROS: .*clang.* "-cc1" .* "-cl-no-signed-zeros"
// CHECK-DENORMS-ARE-ZERO: .*clang.* "-cc1" .* "-cl-denorms-are-zero"
// CHECK-C99: error: invalid argument '-cl-std=c99' not allowed with 'OpenCL'
// CHECK-INVALID: error: invalid value 'invalid' in '-cl-std=invalid'
Index: test/CodeGenOpenCL/no-signed-zeros.cl
===================================================================
--- test/CodeGenOpenCL/no-signed-zeros.cl
+++ test/CodeGenOpenCL/no-signed-zeros.cl
@@ -0,0 +1,10 @@
+// RUN: %clang_cc1 %s -emit-llvm -o - | FileCheck %s -check-prefix=NORMAL
+// RUN: %clang_cc1 %s -emit-llvm -cl-no-signed-zeros -o - | FileCheck %s -check-prefix=NO-SIGNED-ZEROS
+
+float signedzeros(float a) {
+ return a;
+}
+
+// CHECK: attributes
+// NORMAL: "no-signed-zeros-fp-math"="false"
+// NO-SIGNED-ZEROS: "no-signed-zeros-fp-math"="true"
Index: lib/Frontend/CompilerInvocation.cpp
===================================================================
--- lib/Frontend/CompilerInvocation.cpp
+++ lib/Frontend/CompilerInvocation.cpp
@@ -564,7 +564,8 @@
Args.hasArg(OPT_cl_unsafe_math_optimizations) ||
Args.hasArg(OPT_cl_finite_math_only) ||
Args.hasArg(OPT_cl_fast_relaxed_math));
- Opts.NoSignedZeros = Args.hasArg(OPT_fno_signed_zeros);
+ Opts.NoSignedZeros = (Args.hasArg(OPT_fno_signed_zeros) ||
+ Args.hasArg(OPT_cl_no_signed_zeros));
Opts.ReciprocalMath = Args.hasArg(OPT_freciprocal_math);
Opts.NoZeroInitializedInBSS = Args.hasArg(OPT_mno_zero_initialized_in_bss);
Opts.BackendOptions = Args.getAllArgValues(OPT_backend_option);
Index: lib/Driver/Tools.cpp
===================================================================
--- lib/Driver/Tools.cpp
+++ lib/Driver/Tools.cpp
@@ -5139,6 +5139,9 @@
if (Args.getLastArg(options::OPT_cl_mad_enable)) {
CmdArgs.push_back("-cl-mad-enable");
}
+ if (Args.getLastArg(options::OPT_cl_no_signed_zeros)) {
+ CmdArgs.push_back("-cl-no-signed-zeros");
+ }
if (Arg *A = Args.getLastArg(options::OPT_cl_std_EQ)) {
std::string CLStdStr = "-cl-std=";
CLStdStr += A->getValue();
Index: lib/CodeGen/CGCall.cpp
===================================================================
--- lib/CodeGen/CGCall.cpp
+++ lib/CodeGen/CGCall.cpp
@@ -1732,6 +1732,8 @@
llvm::toStringRef(CodeGenOpts.SoftFloat));
FuncAttrs.addAttribute("stack-protector-buffer-size",
llvm::utostr(CodeGenOpts.SSPBufferSize));
+ FuncAttrs.addAttribute("no-signed-zeros-fp-math",
+ llvm::toStringRef(CodeGenOpts.NoSignedZeros));
if (CodeGenOpts.StackRealignment)
FuncAttrs.addAttribute("stackrealign");
Index: include/clang/Driver/Options.td
===================================================================
--- include/clang/Driver/Options.td
+++ include/clang/Driver/Options.td
@@ -383,6 +383,8 @@
HelpText<"OpenCL only. Sets -cl-finite-math-only and -cl-unsafe-math-optimizations, and defines __FAST_RELAXED_MATH__.">;
def cl_mad_enable : Flag<["-"], "cl-mad-enable">, Group<opencl_Group>, Flags<[CC1Option]>,
HelpText<"OpenCL only. Allow use of less precise MAD computations in the generated binary.">;
+def cl_no_signed_zeros : Flag<["-"], "cl-no-signed-zeros">, Group<opencl_Group>, Flags<[CC1Option]>,
+ HelpText<"OpenCL only. Allow use of less precise no signed zeros computations in the generated binary.">;
def cl_std_EQ : Joined<["-"], "cl-std=">, Group<opencl_Group>, Flags<[CC1Option]>,
HelpText<"OpenCL language standard to compile for.">;
def cl_denorms_are_zero : Flag<["-"], "cl-denorms-are-zero">, Group<opencl_Group>, Flags<[CC1Option]>,
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