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[AArch64][AsmParser] Fix .arch_extension directive parsing

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This patch fixes .arch_extension directive parsing to handle a wider
range of architecture extension options. The existing parser was parsing
extensions as an identifier which breaks for extensions containing a
"-", such as the "tlb-rmi" extension.

The extension is now parsed as a string. This is consistent with the
extension parsing in the .arch and .cpu directive parsing.

Patch by Cullen Rhodes (c-rhodes)

Reviewed By: SjoerdMeijer

Differential Revision: https://reviews.llvm.org/D60118

llvm-svn: 357677
This commit is contained in:
Sander de Smalen 2019-04-04 09:11:17 +00:00
parent b25b07126f
commit b0dbd990db
7 changed files with 156 additions and 20 deletions
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10
lib/Target/AArch64/AsmParser/AArch64AsmParser.cpp
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@ -5153,15 +5153,9 @@ bool AArch64AsmParser::parseDirectiveArch(SMLoc L) {
/// parseDirectiveArchExtension
/// ::= .arch_extension [no]feature
bool AArch64AsmParser::parseDirectiveArchExtension(SMLoc L) {
MCAsmParser &Parser = getParser();
SMLoc ExtLoc = getLoc();
if (getLexer().isNot(AsmToken::Identifier))
return Error(getLexer().getLoc(), "expected architecture extension name");
const AsmToken &Tok = Parser.getTok();
StringRef Name = Tok.getString();
SMLoc ExtLoc = Tok.getLoc();
Lex();
StringRef Name = getParser().parseStringToEndOfStatement().trim();
if (parseToken(AsmToken::EndOfStatement,
"unexpected token in '.arch_extension' directive"))

7
test/MC/AArch64/SVE/directive-arch_extension-negative.s Normal file
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@ -0,0 +1,7 @@
// RUN: not llvm-mc -triple aarch64 -filetype asm -o - %s 2>&1 | FileCheck %s
.arch_extension nosve
ptrue p0.b, pow2
// CHECK: error: instruction requires: sve
// CHECK-NEXT: ptrue p0.b, pow2

6
test/MC/AArch64/SVE/directive-arch_extension.s Normal file
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@ -0,0 +1,6 @@
// RUN: llvm-mc -triple=aarch64 < %s | FileCheck %s
.arch_extension sve
ptrue p0.b, pow2
// CHECK: ptrue p0.b, pow2

80
test/MC/AArch64/directive-arch_extension-negative.s Normal file
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@ -0,0 +1,80 @@
// RUN: not llvm-mc -triple aarch64 -filetype asm -o - %s 2>&1 | FileCheck %s
.arch_extension axp64
// CHECK: error: unknown architectural extension: axp64
// CHECK-NEXT: .arch_extension axp64
.arch_extension nocrc
crc32cx w0, w1, x3
// CHECK: error: instruction requires: crc
// CHECK-NEXT: crc32cx w0, w1, x3
.arch_extension nosm4
sm4e v2.4s, v15.4s
// CHECK: error: instruction requires: sm4
// CHECK-NEXT: sm4e v2.4s, v15.4s
.arch_extension nosha3
sha512h q0, q1, v2.2d
// CHECK: error: instruction requires: sha3
// CHECK-NEXT: sha512h q0, q1, v2.2d
.arch_extension nosha2
sha1h s0, s1
// CHECK: error: instruction requires: sha2
// CHECK-NEXT: sha1h s0, s1
.arch_extension noaes
aese v0.16b, v1.16b
// CHECK: error: instruction requires: aes
// CHECK-NEXT: aese v0.16b, v1.16b
.arch_extension nofp
fminnm d0, d0, d1
// CHECK: error: instruction requires: fp
// CHECK-NEXT: fminnm d0, d0, d1
.arch_extension nosimd
addp v0.4s, v0.4s, v0.4s
// CHECK: error: instruction requires: neon
// CHECK-NEXT: addp v0.4s, v0.4s, v0.4s
.arch_extension noras
esb
// CHECK: error: instruction requires: ras
// CHECK-NEXT: esb
.arch_extension nolse
casa w5, w7, [x20]
// CHECK: error: instruction requires: lse
// CHECK-NEXT: casa w5, w7, [x20]
.arch_extension nopredres
cfp rctx, x0
// CHECK: error: CFPRCTX requires predres
// CHECK-NEXT: cfp rctx, x0
.arch_extension noccdp
dc cvadp, x7
// CHECK: error: DC CVADP requires ccdp
// CHECK-NEXT: dc cvadp, x7
.arch_extension nomte
irg x0, x1
// CHECK: error: instruction requires: mte
// CHECK-NEXT: irg x0, x1
.arch_extension notlb-rmi
tlbi vmalle1os
// CHECK: error: TLBI VMALLE1OS requires tlb-rmi
// CHECK-NEXT: tlbi vmalle1os
.arch_extension nopan-rwv
at s1e1wp, x2
// CHECK: error: AT S1E1WP requires pan-rwv
// CHECK-NEXT: at s1e1wp, x2
.arch_extension noccpp
dc cvap, x7
// CHECK: error: DC CVAP requires ccpp
// CHECK-NEXT: dc cvap, x7

6
test/MC/AArch64/directive-arch_extension-nosimd.s
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@ -1,6 +0,0 @@
// RUN: not llvm-mc -triple aarch64 -filetype asm -o - %s 2>&1 | FileCheck %s
.arch_extension nosimd
add v0.8b, v0.8b, v0.8b
// CHECK: error: instruction requires: neon

6
test/MC/AArch64/directive-arch_extension-simd.s
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@ -1,6 +0,0 @@
// RUN: llvm-mc -triple aarch64 -mattr=-simd -filetype asm -o - %s | FileCheck %s
.arch_extension simd
add v0.8b, v0.8b, v0.8b
// CHECK: add v0.8b, v0.8b, v0.8b

61
test/MC/AArch64/directive-arch_extension.s Normal file
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@ -0,0 +1,61 @@
// RUN: llvm-mc -triple aarch64 -filetype asm -o - %s | FileCheck %s
.arch_extension crc
crc32cx w0, w1, x3
// CHECK: crc32cx w0, w1, x3
.arch_extension sm4
sm4e v2.4s, v15.4s
// CHECK: sm4e v2.4s, v15.4s
.arch_extension sha3
sha512h q0, q1, v2.2d
// CHECK: sha512h q0, q1, v2.2d
.arch_extension sha2
sha1h s0, s1
// CHECK: sha1h s0, s1
.arch_extension aes
aese v0.16b, v1.16b
// CHECK: aese v0.16b, v1.16b
.arch_extension fp
fminnm d0, d0, d1
// CHECK: fminnm d0, d0, d1
.arch_extension simd
addp v0.4s, v0.4s, v0.4s
// CHECK: addp v0.4s, v0.4s, v0.4s
.arch_extension ras
esb
// CHECK: esb
.arch_extension lse
casa w5, w7, [x20]
// CHECK: casa w5, w7, [x20]
.arch_extension predres
cfp rctx, x0
// CHECK: cfp rctx, x0
.arch_extension ccdp
dc cvadp, x7
// CHECK: dc cvadp, x7
.arch_extension mte
irg x0, x1
// CHECK: irg x0, x1
.arch_extension tlb-rmi
tlbi vmalle1os
// CHECK: tlbi vmalle1os
.arch_extension pan-rwv
at s1e1wp, x2
// CHECK: at s1e1wp, x2
.arch_extension ccpp
dc cvap, x7
// CHECK: dc cvap, x7