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[PowerPC] [Clang] Enable float128 feature on VSX targets 

Reviewed By: nemanjai, steven.zhang

Differential Revision: https://reviews.llvm.org/D92815
This commit is contained in:
Qiu Chaofan 2021-05-12 14:32:37 +08:00
parent f8306647fa
commit febbe4b5a0
2 changed files with 16 additions and 6 deletions
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10
clang/lib/Basic/Targets/PPC.cpp
View File

@ -328,6 +328,12 @@ bool PPCTargetInfo::initFeatureMap(
.Case("pwr9", true)
.Case("pwr8", true)
.Default(false);
Features["float128"] = llvm::StringSwitch<bool>(CPU)
.Case("ppc64le", true)
.Case("pwr9", true)
.Case("pwr8", true)
.Case("pwr7", true)
.Default(false);
// ROP Protect is off by default.
Features["rop-protect"] = false;
@ -356,9 +362,9 @@ bool PPCTargetInfo::initFeatureMap(
if (!ppcUserFeaturesCheck(Diags, FeaturesVec))
return false;
if (!(ArchDefs & ArchDefinePwr9) && (ArchDefs & ArchDefinePpcgr) &&
if (!(ArchDefs & ArchDefinePwr7) && (ArchDefs & ArchDefinePpcgr) &&
llvm::find(FeaturesVec, "+float128") != FeaturesVec.end()) {
// We have __float128 on PPC but not power 9 and above.
// We have __float128 on PPC but not pre-VSX targets.
Diags.Report(diag::err_opt_not_valid_with_opt) << "-mfloat128" << CPU;
return false;
}

12
clang/test/Driver/ppc-f128-support-check.c
View File

@ -2,13 +2,17 @@
// RUN: -mcpu=pwr9 -mfloat128 %s 2>&1 | FileCheck %s --check-prefix=HASF128
// RUN: not %clang -target powerpc64le-unknown-linux-gnu -fsyntax-only \
// RUN: -mcpu=power9 -mfloat128 %s 2>&1 | FileCheck %s --check-prefix=HASF128
// RUN: not %clang -target powerpc64le-unknown-linux-gnu -fsyntax-only \
// RUN: -mcpu=pwr8 -mfloat128 %s 2>&1 | FileCheck %s --check-prefix=HASF128
// RUN: not %clang -target powerpc64le-unknown-linux-gnu -fsyntax-only \
// RUN: -mcpu=pwr7 -mfloat128 %s 2>&1 | FileCheck %s --check-prefix=HASF128
// RUN: not %clang -target powerpc64le-unknown-linux-gnu -fsyntax-only \
// RUN: -mfloat128 %s 2>&1 | FileCheck %s --check-prefix=HASF128
// RUN: not %clang -target powerpc64le-unknown-linux-gnu -fsyntax-only \
// RUN: -mcpu=pwr8 -mfloat128 %s 2>&1 | FileCheck %s --check-prefix=NOF128
// RUN: -mcpu=pwr6 -mfloat128 %s 2>&1 | FileCheck %s --check-prefix=NOF128
// RUN: not %clang -target powerpc64le-unknown-linux-gnu -fsyntax-only \
// RUN: -mcpu=pwr7 -mfloat128 %s 2>&1 | FileCheck %s --check-prefix=NOF128
// RUN: not %clang -target powerpc64le-unknown-linux-gnu -fsyntax-only \
// RUN: -mfloat128 %s 2>&1 | FileCheck %s --check-prefix=NOF128
// RUN: -mno-vsx -mfloat128 %s 2>&1 | FileCheck %s --check-prefix=NOF128
#ifdef __FLOAT128__
static_assert(false, "__float128 enabled");