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[RISCV] Add support for floating point registers in inlineasm 

This adds support for parsing/emitting in IR the floating-point RISC-V
registers in inline assembly clobber lists.

Differential Revision: https://reviews.llvm.org/D64737

llvm-svn: 367399
This commit is contained in:
Simon Cook 2019-07-31 09:12:00 +00:00
parent 1518c88a7d
commit 7deaeee753
2 changed files with 52 additions and 9 deletions
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33
clang/lib/Basic/Targets/RISCV.cpp
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@ -19,23 +19,38 @@ using namespace clang::targets;
ArrayRef<const char *> RISCVTargetInfo::getGCCRegNames() const {
static const char *const GCCRegNames[] = {
// Integer registers
"x0", "x1", "x2", "x3", "x4", "x5", "x6", "x7",
"x8", "x9", "x10", "x11", "x12", "x13", "x14", "x15",
"x16", "x17", "x18", "x19", "x20", "x21", "x22", "x23",
"x24", "x25", "x26", "x27", "x28", "x29", "x30", "x31"};
"x24", "x25", "x26", "x27", "x28", "x29", "x30", "x31",
// Floating point registers
"f0", "f1", "f2", "f3", "f4", "f5", "f6", "f7",
"f8", "f9", "f10", "f11", "f12", "f13", "f14", "f15",
"f16", "f17", "f18", "f19", "f20", "f21", "f22", "f23",
"f24", "f25", "f26", "f27", "f28", "f29", "f30", "f31"};
return llvm::makeArrayRef(GCCRegNames);
}
ArrayRef<TargetInfo::GCCRegAlias> RISCVTargetInfo::getGCCRegAliases() const {
static const TargetInfo::GCCRegAlias GCCRegAliases[] = {
{{"zero"}, "x0"}, {{"ra"}, "x1"}, {{"sp"}, "x2"}, {{"gp"}, "x3"},
{{"tp"}, "x4"}, {{"t0"}, "x5"}, {{"t1"}, "x6"}, {{"t2"}, "x7"},
{{"s0"}, "x8"}, {{"s1"}, "x9"}, {{"a0"}, "x10"}, {{"a1"}, "x11"},
{{"a2"}, "x12"}, {{"a3"}, "x13"}, {{"a4"}, "x14"}, {{"a5"}, "x15"},
{{"a6"}, "x16"}, {{"a7"}, "x17"}, {{"s2"}, "x18"}, {{"s3"}, "x19"},
{{"s4"}, "x20"}, {{"s5"}, "x21"}, {{"s6"}, "x22"}, {{"s7"}, "x23"},
{{"s8"}, "x24"}, {{"s9"}, "x25"}, {{"s10"}, "x26"}, {{"s11"}, "x27"},
{{"t3"}, "x28"}, {{"t4"}, "x29"}, {{"t5"}, "x30"}, {{"t6"}, "x31"}};
{{"zero"}, "x0"}, {{"ra"}, "x1"}, {{"sp"}, "x2"}, {{"gp"}, "x3"},
{{"tp"}, "x4"}, {{"t0"}, "x5"}, {{"t1"}, "x6"}, {{"t2"}, "x7"},
{{"s0"}, "x8"}, {{"s1"}, "x9"}, {{"a0"}, "x10"}, {{"a1"}, "x11"},
{{"a2"}, "x12"}, {{"a3"}, "x13"}, {{"a4"}, "x14"}, {{"a5"}, "x15"},
{{"a6"}, "x16"}, {{"a7"}, "x17"}, {{"s2"}, "x18"}, {{"s3"}, "x19"},
{{"s4"}, "x20"}, {{"s5"}, "x21"}, {{"s6"}, "x22"}, {{"s7"}, "x23"},
{{"s8"}, "x24"}, {{"s9"}, "x25"}, {{"s10"}, "x26"}, {{"s11"}, "x27"},
{{"t3"}, "x28"}, {{"t4"}, "x29"}, {{"t5"}, "x30"}, {{"t6"}, "x31"},
{{"ft0"}, "f0"}, {{"ft1"}, "f1"}, {{"ft2"}, "f2"}, {{"ft3"}, "f3"},
{{"ft4"}, "f4"}, {{"ft5"}, "f5"}, {{"ft6"}, "f6"}, {{"ft7"}, "f7"},
{{"fs0"}, "f8"}, {{"fs1"}, "f9"}, {{"fa0"}, "f10"}, {{"fa1"}, "f11"},
{{"fa2"}, "f12"}, {{"fa3"}, "f13"}, {{"fa4"}, "f14"}, {{"fa5"}, "f15"},
{{"fa6"}, "f16"}, {{"fa7"}, "f17"}, {{"fs2"}, "f18"}, {{"fs3"}, "f19"},
{{"fs4"}, "f20"}, {{"fs5"}, "f21"}, {{"fs6"}, "f22"}, {{"fs7"}, "f23"},
{{"fs8"}, "f24"}, {{"fs9"}, "f25"}, {{"fs10"}, "f26"}, {{"fs11"}, "f27"},
{{"ft8"}, "f28"}, {{"ft9"}, "f29"}, {{"ft10"}, "f30"}, {{"ft11"}, "f31"}};
return llvm::makeArrayRef(GCCRegAliases);
}

28
clang/test/Sema/riscv-asm.c Normal file
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@ -0,0 +1,28 @@
// RUN: %clang_cc1 %s -triple riscv32 -verify -fsyntax-only
// RUN: %clang_cc1 %s -triple riscv64 -verify -fsyntax-only
// expected-no-diagnostics
void i (void) {
asm volatile ("" ::: "x0", "x1", "x2", "x3", "x4", "x5", "x6", "x7");
asm volatile ("" ::: "x8", "x9", "x10", "x11", "x12", "x13", "x14", "x15");
asm volatile ("" ::: "x16", "x17", "x18", "x19", "x20", "x21", "x22", "x23");
asm volatile ("" ::: "x24", "x25", "x26", "x27", "x28", "x29", "x30", "x31");
asm volatile ("" ::: "zero", "ra", "sp", "gp", "tp", "t0", "t1", "t2");
asm volatile ("" ::: "s0", "s1", "a0", "a1", "a2", "a3", "a4", "a5");
asm volatile ("" ::: "a6", "a7", "s2", "s3", "s4", "s5", "s6", "s7");
asm volatile ("" ::: "s8", "s9", "s10", "s11", "t3", "t4", "t5", "t6");
}
void f (void) {
asm volatile ("" ::: "f0", "f1", "f2", "f3", "f4", "f5", "f6", "f7");
asm volatile ("" ::: "f8", "f9", "f10", "f11", "f12", "f13", "f14", "f15");
asm volatile ("" ::: "f16", "f17", "f18", "f19", "f20", "f21", "f22", "f23");
asm volatile ("" ::: "f24", "f25", "f26", "f27", "f28", "f29", "f30", "f31");
asm volatile ("" ::: "ft0", "ft1", "ft2", "ft3", "ft4", "ft5", "ft6", "ft7");
asm volatile ("" ::: "fs0", "fs1", "fa0", "fa1", "fa2", "fa3", "fa4", "fa5");
asm volatile ("" ::: "fa6", "fa7", "fs2", "fs3", "fs4", "fs5", "fs6", "fs7");
asm volatile ("" ::: "fs8", "fs9", "fs10", "fs11", "ft8", "ft9", "ft10", "ft11");
}