[PATCH] D71553: [RISCV] Add Clang frontend support for Bitmanip extension
Scott Egerton via Phabricator via cfe-commits
cfe-commits at lists.llvm.org
Mon Dec 16 08:43:31 PST 2019
s.egerton created this revision.
s.egerton added reviewers: asb, simoncook, lewis-revill, PaoloS, lenary.
Herald added subscribers: cfe-commits, luismarques, apazos, sameer.abuasal, pzheng, benna, psnobl, jocewei, PkmX, rkruppe, the_o, brucehoult, MartinMosbeck, rogfer01, edward-jones, zzheng, MaskRay, jrtc27, shiva0217, kito-cheng, niosHD, sabuasal, johnrusso, rbar.
Herald added a project: clang.
This adds the __riscv_bitmanip macro and the 'b' target feature to enable it.
Repository:
rG LLVM Github Monorepo
https://reviews.llvm.org/D71553
Files:
clang/lib/Basic/Targets/RISCV.cpp
clang/lib/Basic/Targets/RISCV.h
clang/lib/Driver/ToolChains/Arch/RISCV.cpp
Index: clang/lib/Driver/ToolChains/Arch/RISCV.cpp
===================================================================
--- clang/lib/Driver/ToolChains/Arch/RISCV.cpp
+++ clang/lib/Driver/ToolChains/Arch/RISCV.cpp
@@ -331,6 +331,9 @@
case 'c':
Features.push_back("+c");
break;
+ case 'b':
+ Features.push_back("+b");
+ break;
}
}
Index: clang/lib/Basic/Targets/RISCV.h
===================================================================
--- clang/lib/Basic/Targets/RISCV.h
+++ clang/lib/Basic/Targets/RISCV.h
@@ -30,11 +30,12 @@
bool HasF;
bool HasD;
bool HasC;
+ bool HasB;
public:
RISCVTargetInfo(const llvm::Triple &Triple, const TargetOptions &)
: TargetInfo(Triple), HasM(false), HasA(false), HasF(false),
- HasD(false), HasC(false) {
+ HasD(false), HasC(false), HasB(false) {
LongDoubleWidth = 128;
LongDoubleAlign = 128;
LongDoubleFormat = &llvm::APFloat::IEEEquad();
Index: clang/lib/Basic/Targets/RISCV.cpp
===================================================================
--- clang/lib/Basic/Targets/RISCV.cpp
+++ clang/lib/Basic/Targets/RISCV.cpp
@@ -125,6 +125,10 @@
if (HasC)
Builder.defineMacro("__riscv_compressed");
+
+ if (HasB) {
+ Builder.defineMacro("__riscv_bitmanip");
+ }
}
/// Return true if has this feature, need to sync with handleTargetFeatures.
@@ -139,6 +143,7 @@
.Case("f", HasF)
.Case("d", HasD)
.Case("c", HasC)
+ .Case("b", HasB)
.Default(false);
}
@@ -156,6 +161,8 @@
HasD = true;
else if (Feature == "+c")
HasC = true;
+ else if (Feature == "+b")
+ HasB = true;
}
return true;
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