r253269 - Make FP_CONTRACT ON the default.
Stephen Canon via cfe-commits
cfe-commits at lists.llvm.org
Mon Nov 16 15:09:11 PST 2015
Author: scanon
Date: Mon Nov 16 17:09:11 2015
New Revision: 253269
URL: http://llvm.org/viewvc/llvm-project?rev=253269&view=rev
Log:
Make FP_CONTRACT ON the default.
Differential Revision: D14200
Added:
cfe/trunk/test/CodeGen/aarch64-scalar-fma.c
Modified:
cfe/trunk/include/clang/Basic/LangOptions.def
cfe/trunk/lib/Frontend/CompilerInvocation.cpp
cfe/trunk/test/CodeGen/aarch64-neon-fma.c
cfe/trunk/test/CodeGen/fp-contract-pragma.cpp
cfe/trunk/test/Driver/clang_f_opts.c
Modified: cfe/trunk/include/clang/Basic/LangOptions.def
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/include/clang/Basic/LangOptions.def?rev=253269&r1=253268&r2=253269&view=diff
==============================================================================
--- cfe/trunk/include/clang/Basic/LangOptions.def (original)
+++ cfe/trunk/include/clang/Basic/LangOptions.def Mon Nov 16 17:09:11 2015
@@ -187,7 +187,7 @@ BENIGN_LANGOPT(DebuggerObjCLiteral , 1,
BENIGN_LANGOPT(SpellChecking , 1, 1, "spell-checking")
LANGOPT(SinglePrecisionConstants , 1, 0, "treating double-precision floating point constants as single precision constants")
LANGOPT(FastRelaxedMath , 1, 0, "OpenCL fast relaxed math")
-LANGOPT(DefaultFPContract , 1, 0, "FP_CONTRACT")
+LANGOPT(DefaultFPContract , 1, 1, "FP_CONTRACT")
LANGOPT(NoBitFieldTypeAlign , 1, 0, "bit-field type alignment")
LANGOPT(HexagonQdsp6Compat , 1, 0, "hexagon-qdsp6 backward compatibility")
LANGOPT(ObjCAutoRefCount , 1, 0, "Objective-C automated reference counting")
Modified: cfe/trunk/lib/Frontend/CompilerInvocation.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Frontend/CompilerInvocation.cpp?rev=253269&r1=253268&r2=253269&view=diff
==============================================================================
--- cfe/trunk/lib/Frontend/CompilerInvocation.cpp (original)
+++ cfe/trunk/lib/Frontend/CompilerInvocation.cpp Mon Nov 16 17:09:11 2015
@@ -1336,7 +1336,6 @@ void CompilerInvocation::setLangDefaults
Opts.ZVector = 0;
Opts.CXXOperatorNames = 1;
Opts.LaxVectorConversions = 0;
- Opts.DefaultFPContract = 1;
Opts.NativeHalfType = 1;
}
Modified: cfe/trunk/test/CodeGen/aarch64-neon-fma.c
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/test/CodeGen/aarch64-neon-fma.c?rev=253269&r1=253268&r2=253269&view=diff
==============================================================================
--- cfe/trunk/test/CodeGen/aarch64-neon-fma.c (original)
+++ cfe/trunk/test/CodeGen/aarch64-neon-fma.c Mon Nov 16 17:09:11 2015
@@ -1,5 +1,8 @@
// REQUIRES: aarch64-registered-target
-// RUN: %clang_cc1 -triple arm64-none-linux-gnu -target-feature +neon -S -O3 -o - %s | FileCheck %s
+// RUN: %clang_cc1 -triple arm64-none-linux-gnu -target-feature +neon -S -O3 \
+// RUN: -ffp-contract=off -o - %s | FileCheck %s
+// RUN: %clang_cc1 -triple arm64-none-linux-gnu -target-feature +neon -S -O3 \
+// RUN: -o - %s | FileCheck -check-prefix=CHECK-FMA %s
// Test new aarch64 intrinsics and types
@@ -10,8 +13,7 @@ float32x2_t test_vmla_n_f32(float32x2_t
return vmla_n_f32(a, b, c);
// CHECK: fmul {{v[0-9]+}}.2s, {{v[0-9]+}}.2s, {{v[0-9]+}}.s[0]
// CHECK: fadd {{v[0-9]+}}.2s, {{v[0-9]+}}.2s, {{v[0-9]+}}.2s
- // CHECK-FMA: dup {{v[0-9]+}}.2s, {{v[0-9]+}}.s[0]
- // CHECK-FMA: fmla {{v[0-9]+}}.2s, {{v[0-9]+}}.2s, {{v[0-9]+}}.2s
+ // CHECK-FMA: fmla {{v[0-9]+}}.2s, {{v[0-9]+}}.2s, {{v[0-9]+}}.s[0]
}
float32x4_t test_vmlaq_n_f32(float32x4_t a, float32x4_t b, float32_t c) {
@@ -19,8 +21,7 @@ float32x4_t test_vmlaq_n_f32(float32x4_t
return vmlaq_n_f32(a, b, c);
// CHECK: fmul {{v[0-9]+}}.4s, {{v[0-9]+}}.4s, {{v[0-9]+}}.s[0]
// CHECK: fadd {{v[0-9]+}}.4s, {{v[0-9]+}}.4s, {{v[0-9]+}}.4s
- // CHECK-FMA: dup {{v[0-9]+}}.4s, {{v[0-9]+}}.s[0]
- // CHECK-FMA: fmla {{v[0-9]+}}.4s, {{v[0-9]+}}.4s, {{v[0-9]+}}.4s
+ // CHECK-FMA: fmla {{v[0-9]+}}.4s, {{v[0-9]+}}.4s, {{v[0-9]+}}.s[0]
}
float64x2_t test_vmlaq_n_f64(float64x2_t a, float64x2_t b, float64_t c) {
@@ -28,8 +29,7 @@ float64x2_t test_vmlaq_n_f64(float64x2_t
return vmlaq_n_f64(a, b, c);
// CHECK: fmul {{v[0-9]+}}.2d, {{v[0-9]+}}.2d, {{v[0-9]+}}.d[0]
// CHECK: fadd {{v[0-9]+}}.2d, {{v[0-9]+}}.2d, {{v[0-9]+}}.2d
- // CHECK-FMA: dup {{v[0-9]+}}.2d, {{v[0-9]+}}.d[0]
- // CHECK-FMA: fmla {{v[0-9]+}}.2d, {{v[0-9]+}}.2d, {{v[0-9]+}}.2d
+ // CHECK-FMA: fmla {{v[0-9]+}}.2d, {{v[0-9]+}}.2d, {{v[0-9]+}}.d[0]
}
float32x4_t test_vmlsq_n_f32(float32x4_t a, float32x4_t b, float32_t c) {
@@ -37,8 +37,7 @@ float32x4_t test_vmlsq_n_f32(float32x4_t
return vmlsq_n_f32(a, b, c);
// CHECK: fmul {{v[0-9]+}}.4s, {{v[0-9]+}}.4s, {{v[0-9]+}}.s[0]
// CHECK: fsub {{v[0-9]+}}.4s, {{v[0-9]+}}.4s, {{v[0-9]+}}.4s
- // CHECK-FMA: dup {{v[0-9]+}}.4s, {{v[0-9]+}}.s[0]
- // CHECK-FMA: fmls {{v[0-9]+}}.4s, {{v[0-9]+}}.4s, {{v[0-9]+}}.4s
+ // CHECK-FMA: fmls {{v[0-9]+}}.4s, {{v[0-9]+}}.4s, {{v[0-9]+}}.s[0]
}
float32x2_t test_vmls_n_f32(float32x2_t a, float32x2_t b, float32_t c) {
@@ -46,8 +45,7 @@ float32x2_t test_vmls_n_f32(float32x2_t
return vmls_n_f32(a, b, c);
// CHECK: fmul {{v[0-9]+}}.2s, {{v[0-9]+}}.2s, {{v[0-9]+}}.s[0]
// CHECK: fsub {{v[0-9]+}}.2s, {{v[0-9]+}}.2s, {{v[0-9]+}}.2s
- // CHECK-FMA: dup {{v[0-9]+}}.2s, {{v[0-9]+}}.s[0]
- // CHECK-FMA: fmls {{v[0-9]+}}.2s, {{v[0-9]+}}.2s, {{v[0-9]+}}.2s
+ // CHECK-FMA: fmls {{v[0-9]+}}.2s, {{v[0-9]+}}.2s, {{v[0-9]+}}.s[0]
}
float64x2_t test_vmlsq_n_f64(float64x2_t a, float64x2_t b, float64_t c) {
@@ -55,8 +53,7 @@ float64x2_t test_vmlsq_n_f64(float64x2_t
return vmlsq_n_f64(a, b, c);
// CHECK: fmul {{v[0-9]+}}.2d, {{v[0-9]+}}.2d, {{v[0-9]+}}.d[0]
// CHECK: fsub {{v[0-9]+}}.2d, {{v[0-9]+}}.2d, {{v[0-9]+}}.2d
- // CHECK-FMA: dup {{v[0-9]+}}.2d, {{v[0-9]+}}.d[0]
- // CHECK-FMA: fmls {{v[0-9]+}}.2d, {{v[0-9]+}}.2d, {{v[0-9]+}}.2d
+ // CHECK-FMA: fmls {{v[0-9]+}}.2d, {{v[0-9]+}}.2d, {{v[0-9]+}}.d[0]
}
float32x2_t test_vmla_lane_f32_0(float32x2_t a, float32x2_t b, float32x2_t v) {
Added: cfe/trunk/test/CodeGen/aarch64-scalar-fma.c
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/test/CodeGen/aarch64-scalar-fma.c?rev=253269&view=auto
==============================================================================
--- cfe/trunk/test/CodeGen/aarch64-scalar-fma.c (added)
+++ cfe/trunk/test/CodeGen/aarch64-scalar-fma.c Mon Nov 16 17:09:11 2015
@@ -0,0 +1,177 @@
+// RUN: %clang_cc1 -triple=aarch64-unknown -Os -ffp-contract=fast -S -o - %s | FileCheck -check-prefix=CHECK-FAST -check-prefix=CHECK-ALL %s
+// RUN: %clang_cc1 -triple=aarch64-unknown -Os -ffp-contract=on -S -o - %s | FileCheck -check-prefix=CHECK-ON -check-prefix=CHECK-ALL %s
+// RUN: %clang_cc1 -triple=aarch64-unknown -Os -ffp-contract=off -S -o - %s | FileCheck -check-prefix=CHECK-OFF -check-prefix=CHECK-ALL %s
+// RUN: %clang_cc1 -triple=aarch64-unknown -Os -S -o - %s | FileCheck -check-prefix=CHECK-ON -check-prefix=CHECK-ALL %s
+// REQUIRES: aarch64-registered-target
+
+float test1(float x, float y, float z) {
+ return x*y + z;
+ // CHECK-ALL-LABEL: test1:
+ // CHECK-FAST: fmadd
+ // CHECK-ON: fmadd
+ // CHECK-OFF: fmul
+ // CHECK-OFF-NEXT: fadd
+}
+
+double test2(double x, double y, double z) {
+ z -= x*y;
+ return z;
+ // CHECK-ALL-LABEL: test2:
+ // CHECK-FAST: fmsub
+ // CHECK-ON: fmsub
+ // CHECK-OFF: fmul
+ // CHECK-OFF-NEXT: fsub
+}
+
+float test3(float x, float y, float z) {
+ float tmp = x*y;
+ return tmp + z;
+ // CHECK-ALL-LABEL: test3:
+ // CHECK-FAST: fmadd
+ // CHECK-ON: fmul
+ // CHECK-ON-NEXT: fadd
+ // CHECK-OFF: fmul
+ // CHECK-OFF-NEXT: fadd
+}
+
+double test4(double x, double y, double z) {
+ double tmp = x*y;
+ return tmp - z;
+ // CHECK-ALL-LABEL: test4:
+ // CHECK-FAST: fnmsub
+ // CHECK-ON: fmul
+ // CHECK-ON-NEXT: fsub
+ // CHECK-OFF: fmul
+ // CHECK-OFF-NEXT: fsub
+}
+
+#pragma STDC FP_CONTRACT ON
+
+float test5(float x, float y, float z) {
+ return x*y + z;
+ // CHECK-ALL-LABEL: test5:
+ // CHECK-FAST: fmadd
+ // CHECK-ON: fmadd
+ // CHECK-OFF: fmul
+ // CHECK-OFF-NEXT: fadd
+}
+
+double test6(double x, double y, double z) {
+ z -= x*y;
+ return z;
+ // CHECK-ALL-LABEL: test6:
+ // CHECK-FAST: fmsub
+ // CHECK-ON: fmsub
+ // CHECK-OFF: fmul
+ // CHECK-OFF-NEXT: fsub
+}
+
+float test7(float x, float y, float z) {
+ float tmp = x*y;
+ return tmp + z;
+ // CHECK-ALL-LABEL: test7:
+ // CHECK-FAST: fmadd
+ // CHECK-ON: fmul
+ // CHECK-ON-NEXT: fadd
+ // CHECK-OFF: fmul
+ // CHECK-OFF-NEXT: fadd
+}
+
+double test8(double x, double y, double z) {
+ double tmp = x*y;
+ return tmp - z;
+ // CHECK-ALL-LABEL: test8:
+ // CHECK-FAST: fnmsub
+ // CHECK-ON: fmul
+ // CHECK-ON-NEXT: fsub
+ // CHECK-OFF: fmul
+ // CHECK-OFF-NEXT: fsub
+}
+
+#pragma STDC FP_CONTRACT OFF
+
+float test9(float x, float y, float z) {
+ return x*y + z;
+ // CHECK-ALL-LABEL: test9:
+ // CHECK-FAST: fmadd
+ // CHECK-ON: fmul
+ // CHECK-ON-NEXT: fadd
+ // CHECK-OFF: fmul
+ // CHECK-OFF-NEXT: fadd
+}
+
+double test10(double x, double y, double z) {
+ z -= x*y;
+ return z;
+ // CHECK-ALL-LABEL: test10:
+ // CHECK-FAST: fmsub
+ // CHECK-ON: fmul
+ // CHECK-ON-NEXT: fsub
+ // CHECK-OFF: fmul
+ // CHECK-OFF-NEXT: fsub
+}
+
+float test11(float x, float y, float z) {
+ float tmp = x*y;
+ return tmp + z;
+ // CHECK-ALL-LABEL: test11:
+ // CHECK-FAST: fmadd
+ // CHECK-ON: fmul
+ // CHECK-ON-NEXT: fadd
+ // CHECK-OFF: fmul
+ // CHECK-OFF-NEXT: fadd
+}
+
+double test12(double x, double y, double z) {
+ double tmp = x*y;
+ return tmp - z;
+ // CHECK-ALL-LABEL: test12:
+ // CHECK-FAST: fnmsub
+ // CHECK-ON: fmul
+ // CHECK-ON-NEXT: fsub
+ // CHECK-OFF: fmul
+ // CHECK-OFF-NEXT: fsub
+}
+
+#pragma STDC FP_CONTRACT DEFAULT
+
+float test17(float x, float y, float z) {
+ return x*y + z;
+ // CHECK-ALL-LABEL: test17:
+ // CHECK-FAST: fmadd
+ // CHECK-ON: fmadd
+ // CHECK-OFF: fmul
+ // CHECK-OFF-NEXT: fadd
+}
+
+double test18(double x, double y, double z) {
+ z -= x*y;
+ return z;
+ // CHECK-ALL-LABEL: test18:
+ // CHECK-FAST: fmsub
+ // CHECK-ON: fmsub
+ // CHECK-OFF: fmul
+ // CHECK-OFF-NEXT: fsub
+}
+
+float test19(float x, float y, float z) {
+ float tmp = x*y;
+ return tmp + z;
+ // CHECK-ALL-LABEL: test19:
+ // CHECK-FAST: fmadd
+ // CHECK-ON: fmul
+ // CHECK-ON-NEXT: fadd
+ // CHECK-OFF: fmul
+ // CHECK-OFF-NEXT: fadd
+}
+
+double test20(double x, double y, double z) {
+ double tmp = x*y;
+ return tmp - z;
+ // CHECK-ALL-LABEL: test20:
+ // CHECK-FAST: fnmsub
+ // CHECK-ON: fmul
+ // CHECK-ON-NEXT: fsub
+ // CHECK-OFF: fmul
+ // CHECK-OFF-NEXT: fsub
+}
Modified: cfe/trunk/test/CodeGen/fp-contract-pragma.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/test/CodeGen/fp-contract-pragma.cpp?rev=253269&r1=253268&r2=253269&view=diff
==============================================================================
--- cfe/trunk/test/CodeGen/fp-contract-pragma.cpp (original)
+++ cfe/trunk/test/CodeGen/fp-contract-pragma.cpp Mon Nov 16 17:09:11 2015
@@ -1,5 +1,7 @@
// RUN: %clang_cc1 -O3 -triple %itanium_abi_triple -emit-llvm -o - %s | FileCheck %s
+#pragma STDC FP_CONTRACT OFF
+
// Is FP_CONTRACT is honored in a simple case?
float fp_contract_1(float a, float b, float c) {
// CHECK: _Z13fp_contract_1fff
Modified: cfe/trunk/test/Driver/clang_f_opts.c
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/test/Driver/clang_f_opts.c?rev=253269&r1=253268&r2=253269&view=diff
==============================================================================
--- cfe/trunk/test/Driver/clang_f_opts.c (original)
+++ cfe/trunk/test/Driver/clang_f_opts.c Mon Nov 16 17:09:11 2015
@@ -36,8 +36,10 @@
// RUN: %clang -### -S -ffp-contract=fast %s 2>&1 | FileCheck -check-prefix=FP-CONTRACT-FAST-CHECK %s
// RUN: %clang -### -S -ffast-math %s 2>&1 | FileCheck -check-prefix=FP-CONTRACT-FAST-CHECK %s
// RUN: %clang -### -S -ffp-contract=off %s 2>&1 | FileCheck -check-prefix=FP-CONTRACT-OFF-CHECK %s
+// RUN: %clang -### -S -ffp-contract=on %s 2>&1 | FileCheck -check-prefix=FP-CONTRACT-ON-CHECK %s
// FP-CONTRACT-FAST-CHECK: -ffp-contract=fast
// FP-CONTRACT-OFF-CHECK: -ffp-contract=off
+// FP-CONTRACT-ON-CHECK: -ffp-contract=on
// RUN: %clang -### -S -funroll-loops %s 2>&1 | FileCheck -check-prefix=CHECK-UNROLL-LOOPS %s
// RUN: %clang -### -S -fno-unroll-loops %s 2>&1 | FileCheck -check-prefix=CHECK-NO-UNROLL-LOOPS %s
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