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[LoongArch] Support sc.q instruction for 128bit cmpxchg operation (#116771)
Two options for clang -mno-scq: Disable sc.q instruction. -mscq: Enable sc.q instruction. The default is -mno-scq.
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16 files changed

+605
-19
lines changed

16 files changed

+605
-19
lines changed

‎clang/include/clang/Driver/Options.td

Lines changed: 4 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -5474,6 +5474,10 @@ def mdiv32 : Flag<["-"], "mdiv32">, Group<m_loongarch_Features_Group>,
54745474
HelpText<"Use div.w[u] and mod.w[u] instructions with input not sign-extended.">;
54755475
def mno_div32 : Flag<["-"], "mno-div32">, Group<m_loongarch_Features_Group>,
54765476
HelpText<"Do not use div.w[u] and mod.w[u] instructions with input not sign-extended.">;
5477+
def mscq : Flag<["-"], "mscq">, Group<m_loongarch_Features_Group>,
5478+
HelpText<"Enable sc.q instruction.">;
5479+
def mno_scq : Flag<["-"], "mno-scq">, Group<m_loongarch_Features_Group>,
5480+
HelpText<"Disable sc.q instruction.">;
54775481
def mannotate_tablejump : Flag<["-"], "mannotate-tablejump">, Group<m_loongarch_Features_Group>,
54785482
HelpText<"Enable annotate table jump instruction to correlate it with the jump table.">;
54795483
def mno_annotate_tablejump : Flag<["-"], "mno-annotate-tablejump">, Group<m_loongarch_Features_Group>,

‎clang/lib/Basic/Targets/LoongArch.cpp

Lines changed: 6 additions & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -206,7 +206,7 @@ void LoongArchTargetInfo::getTargetDefines(const LangOptions &Opts,
206206
// arch feature set will be used to include all sub-features belonging to
207207
// the V1.1 ISA version.
208208
if (HasFeatureFrecipe && HasFeatureLAM_BH && HasFeatureLAMCAS &&
209-
HasFeatureLD_SEQ_SA && HasFeatureDiv32)
209+
HasFeatureLD_SEQ_SA && HasFeatureDiv32 && HasFeatureSCQ)
210210
Builder.defineMacro("__loongarch_arch",
211211
Twine('"') + "la64v1.1" + Twine('"'));
212212
else
@@ -249,6 +249,9 @@ void LoongArchTargetInfo::getTargetDefines(const LangOptions &Opts,
249249
if (HasFeatureDiv32)
250250
Builder.defineMacro("__loongarch_div32", Twine(1));
251251

252+
if (HasFeatureSCQ)
253+
Builder.defineMacro("__loongarch_scq", Twine(1));
254+
252255
StringRef ABI = getABI();
253256
if (ABI == "lp64d" || ABI == "lp64f" || ABI == "lp64s")
254257
Builder.defineMacro("__loongarch_lp64");
@@ -333,6 +336,8 @@ bool LoongArchTargetInfo::handleTargetFeatures(
333336
HasFeatureLD_SEQ_SA = true;
334337
else if (Feature == "+div32")
335338
HasFeatureDiv32 = true;
339+
else if (Feature == "+scq")
340+
HasFeatureSCQ = true;
336341
}
337342
return true;
338343
}

‎clang/lib/Basic/Targets/LoongArch.h

Lines changed: 2 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -34,6 +34,7 @@ class LLVM_LIBRARY_VISIBILITY LoongArchTargetInfo : public TargetInfo {
3434
bool HasFeatureLAMCAS;
3535
bool HasFeatureLD_SEQ_SA;
3636
bool HasFeatureDiv32;
37+
bool HasFeatureSCQ;
3738

3839
public:
3940
LoongArchTargetInfo(const llvm::Triple &Triple, const TargetOptions &)
@@ -47,6 +48,7 @@ class LLVM_LIBRARY_VISIBILITY LoongArchTargetInfo : public TargetInfo {
4748
HasFeatureLAMCAS = false;
4849
HasFeatureLD_SEQ_SA = false;
4950
HasFeatureDiv32 = false;
51+
HasFeatureSCQ = false;
5052
LongDoubleWidth = 128;
5153
LongDoubleAlign = 128;
5254
LongDoubleFormat = &llvm::APFloat::IEEEquad();

‎clang/lib/Driver/ToolChains/Arch/LoongArch.cpp

Lines changed: 2 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -286,6 +286,8 @@ void loongarch::getLoongArchTargetFeatures(const Driver &D,
286286
options::OPT_mno_ld_seq_sa, "ld-seq-sa");
287287
AddTargetFeature(Args, Features, options::OPT_mdiv32,
288288
options::OPT_mno_div32, "div32");
289+
AddTargetFeature(Args, Features, options::OPT_mscq, options::OPT_mno_scq,
290+
"scq");
289291
}
290292

291293
std::string loongarch::postProcessTargetCPUString(const std::string &CPU,

‎clang/test/Driver/loongarch-march.c

Lines changed: 4 additions & 4 deletions
Original file line numberDiff line numberDiff line change
@@ -39,21 +39,21 @@
3939

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// CC1-LA64V1P1: "-target-cpu" "loongarch64"
4141
// CC1-LA64V1P1-NOT: "-target-feature"
42-
// CC1-LA64V1P1: "-target-feature" "+64bit" "-target-feature" "+d" "-target-feature" "+lsx" "-target-feature" "+ual" "-target-feature" "+frecipe" "-target-feature" "+lam-bh" "-target-feature" "+lamcas" "-target-feature" "+ld-seq-sa" "-target-feature" "+div32"
42+
// CC1-LA64V1P1: "-target-feature" "+64bit" "-target-feature" "+d" "-target-feature" "+lsx" "-target-feature" "+ual" "-target-feature" "+frecipe" "-target-feature" "+lam-bh" "-target-feature" "+lamcas" "-target-feature" "+ld-seq-sa" "-target-feature" "+div32" "-target-feature" "+scq"
4343
// CC1-LA64V1P1-NOT: "-target-feature"
4444
// CC1-LA64V1P1: "-target-abi" "lp64d"
4545

4646
// CC1-LA664: "-target-cpu" "la664"
4747
// CC1-LA664-NOT: "-target-feature"
48-
// CC1-LA664: "-target-feature" "+64bit" "-target-feature" "+f" "-target-feature" "+d" "-target-feature" "+lsx" "-target-feature" "+lasx" "-target-feature" "+ual" "-target-feature" "+frecipe" "-target-feature" "+lam-bh" "-target-feature" "+lamcas" "-target-feature" "+ld-seq-sa" "-target-feature" "+div32"
48+
// CC1-LA664: "-target-feature" "+64bit" "-target-feature" "+f" "-target-feature" "+d" "-target-feature" "+lsx" "-target-feature" "+lasx" "-target-feature" "+ual" "-target-feature" "+frecipe" "-target-feature" "+lam-bh" "-target-feature" "+lamcas" "-target-feature" "+ld-seq-sa" "-target-feature" "+div32" "-target-feature" "+scq"
4949
// CC1-LA664-NOT: "-target-feature"
5050
// CC1-LA664: "-target-abi" "lp64d"
5151

5252
// IR-LOONGARCH64: attributes #[[#]] ={{.*}}"target-cpu"="loongarch64" {{.*}}"target-features"="+64bit,+d,+f,+ual"
5353
// IR-LA464: attributes #[[#]] ={{.*}}"target-cpu"="la464" {{.*}}"target-features"="+64bit,+d,+f,+lasx,+lsx,+ual"
5454
// IR-LA64V1P0: attributes #[[#]] ={{.*}}"target-cpu"="loongarch64" {{.*}}"target-features"="+64bit,+d,+lsx,+ual"
55-
// IR-LA64V1P1: attributes #[[#]] ={{.*}}"target-cpu"="loongarch64" {{.*}}"target-features"="+64bit,+d,+div32,+frecipe,+lam-bh,+lamcas,+ld-seq-sa,+lsx,+ual"
56-
// IR-LA664: attributes #[[#]] ={{.*}}"target-cpu"="la664" {{.*}}"target-features"="+64bit,+d,+div32,+f,+frecipe,+lam-bh,+lamcas,+lasx,+ld-seq-sa,+lsx,+ual"
55+
// IR-LA64V1P1: attributes #[[#]] ={{.*}}"target-cpu"="loongarch64" {{.*}}"target-features"="+64bit,+d,+div32,+frecipe,+lam-bh,+lamcas,+ld-seq-sa,+lsx,+scq,+ual"
56+
// IR-LA664: attributes #[[#]] ={{.*}}"target-cpu"="la664" {{.*}}"target-features"="+64bit,+d,+div32,+f,+frecipe,+lam-bh,+lamcas,+lasx,+ld-seq-sa,+lsx,+scq,+ual"
5757

5858
int foo(void) {
5959
return 3;

‎clang/test/Driver/loongarch-mscq.c

Lines changed: 30 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -0,0 +1,30 @@
1+
/// Test -m[no]scq options.
2+
3+
// RUN: %clang --target=loongarch64 -mscq -fsyntax-only %s -### 2>&1 | \
4+
// RUN: FileCheck %s --check-prefix=CC1-SCQ
5+
// RUN: %clang --target=loongarch64 -mno-scq -fsyntax-only %s -### 2>&1 | \
6+
// RUN: FileCheck %s --check-prefix=CC1-NO-SCQ
7+
// RUN: %clang --target=loongarch64 -mno-scq -mscq -fsyntax-only %s -### 2>&1 | \
8+
// RUN: FileCheck %s --check-prefix=CC1-SCQ
9+
// RUN: %clang --target=loongarch64 -mscq -mno-scq -fsyntax-only %s -### 2>&1 | \
10+
// RUN: FileCheck %s --check-prefix=CC1-NO-SCQ
11+
12+
// RUN: %clang --target=loongarch64 -mscq -S -emit-llvm %s -o - | \
13+
// RUN: FileCheck %s --check-prefix=IR-SCQ
14+
// RUN: %clang --target=loongarch64 -mno-scq -S -emit-llvm %s -o - | \
15+
// RUN: FileCheck %s --check-prefix=IR-NO-SCQ
16+
// RUN: %clang --target=loongarch64 -mno-scq -mscq -S -emit-llvm %s -o - | \
17+
// RUN: FileCheck %s --check-prefix=IR-SCQ
18+
// RUN: %clang --target=loongarch64 -mscq -mno-scq -S -emit-llvm %s -o - | \
19+
// RUN: FileCheck %s --check-prefix=IR-NO-SCQ
20+
21+
22+
// CC1-SCQ: "-target-feature" "+scq"
23+
// CC1-NO-SCQ: "-target-feature" "-scq"
24+
25+
// IR-SCQ: attributes #[[#]] ={{.*}}"target-features"="{{(.*,)?}}+scq{{(,.*)?}}"
26+
// IR-NO-SCQ: attributes #[[#]] ={{.*}}"target-features"="{{(.*,)?}}-scq{{(,.*)?}}"
27+
28+
int foo(void) {
29+
return 42;
30+
}

‎clang/test/Preprocessor/init-loongarch.c

Lines changed: 20 additions & 11 deletions
Original file line numberDiff line numberDiff line change
@@ -798,7 +798,7 @@
798798
// LA64-FPU0-LP64S-NOT: #define __loongarch_single_float
799799
// LA64-FPU0-LP64S: #define __loongarch_soft_float 1
800800

801-
/// Check __loongarch_arch{_tune/_frecipe/_lam_bh/_lamcas/_ld_seq_sa/_div32}.
801+
/// Check __loongarch_arch{_tune/_frecipe/_lam_bh/_lamcas/_ld_seq_sa/_div32/_scq}.
802802

803803
// RUN: %clang --target=loongarch64 -x c -E -dM %s -o - | \
804804
// RUN: FileCheck --match-full-lines --check-prefix=ARCH-TUNE -DARCH=la64v1.0 -DTUNE=loongarch64 %s
@@ -823,64 +823,73 @@
823823
// RUN: %clang --target=loongarch64 -x c -E -dM %s -o - -march=loongarch64 -Xclang -target-feature -Xclang +lsx | \
824824
// RUN: FileCheck --match-full-lines --check-prefix=ARCH-TUNE -DARCH=la64v1.0 -DTUNE=loongarch64 %s
825825
// RUN: %clang --target=loongarch64 -x c -E -dM %s -o - -march=la64v1.1 | \
826-
// RUN: FileCheck --match-full-lines --check-prefixes=ARCH-TUNE,FRECIPE,LAM-BH,LAMCAS,LD-SEQ-SA,DIV32 -DARCH=la64v1.1 -DTUNE=loongarch64 %s
826+
// RUN: FileCheck --match-full-lines --check-prefixes=ARCH-TUNE,FRECIPE,LAM-BH,LAMCAS,LD-SEQ-SA,DIV32,SCQ -DARCH=la64v1.1 -DTUNE=loongarch64 %s
827827
// RUN: %clang --target=loongarch64 -x c -E -dM %s -o - -march=la64v1.1 -Xclang -target-feature -Xclang -frecipe | \
828-
// RUN: FileCheck --match-full-lines --check-prefixes=ARCH-TUNE,LAM-BH,LAMCAS,LD-SEQ-SA,DIV32 -DARCH=la64v1.0 -DTUNE=loongarch64 %s
828+
// RUN: FileCheck --match-full-lines --check-prefixes=ARCH-TUNE,LAM-BH,LAMCAS,LD-SEQ-SA,DIV32,SCQ -DARCH=la64v1.0 -DTUNE=loongarch64 %s
829829
// RUN: %clang --target=loongarch64 -x c -E -dM %s -o - -march=la64v1.1 -Xclang -target-feature -Xclang -lsx | \
830-
// RUN: FileCheck --match-full-lines --check-prefixes=ARCH-TUNE,FRECIPE,LAM-BH,LAMCAS,LD-SEQ-SA,DIV32 -DARCH=loongarch64 -DTUNE=loongarch64 %s
830+
// RUN: FileCheck --match-full-lines --check-prefixes=ARCH-TUNE,FRECIPE,LAM-BH,LAMCAS,LD-SEQ-SA,DIV32,SCQ -DARCH=loongarch64 -DTUNE=loongarch64 %s
831831
// RUN: %clang --target=loongarch64 -x c -E -dM %s -o - -march=loongarch64 -Xclang -target-feature -Xclang +frecipe | \
832832
// RUN: FileCheck --match-full-lines --check-prefixes=ARCH-TUNE,FRECIPE -DARCH=loongarch64 -DTUNE=loongarch64 %s
833833
// RUN: %clang --target=loongarch64 -x c -E -dM %s -o - -march=loongarch64 -Xclang -target-feature -Xclang +lsx -Xclang -target-feature -Xclang +frecipe | \
834834
// RUN: FileCheck --match-full-lines --check-prefixes=ARCH-TUNE,FRECIPE -DARCH=la64v1.0 -DTUNE=loongarch64 %s
835835
// RUN: %clang --target=loongarch64 -x c -E -dM %s -o - -march=la64v1.0 -Xclang -target-feature -Xclang +lam-bh | \
836836
// RUN: FileCheck --match-full-lines --check-prefixes=ARCH-TUNE,LAM-BH -DARCH=la64v1.0 -DTUNE=loongarch64 %s
837837
// RUN: %clang --target=loongarch64 -x c -E -dM %s -o - -march=la64v1.1 -Xclang -target-feature -Xclang -lam-bh | \
838-
// RUN: FileCheck --match-full-lines --check-prefixes=ARCH-TUNE,FRECIPE,LAMCAS,LD-SEQ-SA,DIV32 -DARCH=la64v1.0 -DTUNE=loongarch64 %s
838+
// RUN: FileCheck --match-full-lines --check-prefixes=ARCH-TUNE,FRECIPE,LAMCAS,LD-SEQ-SA,DIV32,SCQ -DARCH=la64v1.0 -DTUNE=loongarch64 %s
839839
// RUN: %clang --target=loongarch64 -x c -E -dM %s -o - -march=loongarch64 -Xclang -target-feature -Xclang +lam-bh | \
840840
// RUN: FileCheck --match-full-lines --check-prefixes=ARCH-TUNE,LAM-BH -DARCH=loongarch64 -DTUNE=loongarch64 %s
841841
// RUN: %clang --target=loongarch64 -x c -E -dM %s -o - -march=loongarch64 -Xclang -target-feature -Xclang +lsx -Xclang -target-feature -Xclang +lam-bh | \
842842
// RUN: FileCheck --match-full-lines --check-prefixes=ARCH-TUNE,LAM-BH -DARCH=la64v1.0 -DTUNE=loongarch64 %s
843843
// RUN: %clang --target=loongarch64 -x c -E -dM %s -o - -march=la64v1.0 -Xclang -target-feature -Xclang +lamcas | \
844844
// RUN: FileCheck --match-full-lines --check-prefixes=ARCH-TUNE,LAMCAS -DARCH=la64v1.0 -DTUNE=loongarch64 %s
845845
// RUN: %clang --target=loongarch64 -x c -E -dM %s -o - -march=la64v1.1 -Xclang -target-feature -Xclang -lamcas | \
846-
// RUN: FileCheck --match-full-lines --check-prefixes=ARCH-TUNE,FRECIPE,LAM-BH,LD-SEQ-SA,DIV32 -DARCH=la64v1.0 -DTUNE=loongarch64 %s
846+
// RUN: FileCheck --match-full-lines --check-prefixes=ARCH-TUNE,FRECIPE,LAM-BH,LD-SEQ-SA,DIV32,SCQ -DARCH=la64v1.0 -DTUNE=loongarch64 %s
847847
// RUN: %clang --target=loongarch64 -x c -E -dM %s -o - -march=loongarch64 -Xclang -target-feature -Xclang +lamcas | \
848848
// RUN: FileCheck --match-full-lines --check-prefixes=ARCH-TUNE,LAMCAS -DARCH=loongarch64 -DTUNE=loongarch64 %s
849849
// RUN: %clang --target=loongarch64 -x c -E -dM %s -o - -march=loongarch64 -Xclang -target-feature -Xclang +lsx -Xclang -target-feature -Xclang +lamcas | \
850850
// RUN: FileCheck --match-full-lines --check-prefixes=ARCH-TUNE,LAMCAS -DARCH=la64v1.0 -DTUNE=loongarch64 %s
851851
// RUN: %clang --target=loongarch64 -x c -E -dM %s -o - -march=la64v1.0 -Xclang -target-feature -Xclang +ld-seq-sa | \
852852
// RUN: FileCheck --match-full-lines --check-prefixes=ARCH-TUNE,LD-SEQ-SA -DARCH=la64v1.0 -DTUNE=loongarch64 %s
853853
// RUN: %clang --target=loongarch64 -x c -E -dM %s -o - -march=la64v1.1 -Xclang -target-feature -Xclang -ld-seq-sa | \
854-
// RUN: FileCheck --match-full-lines --check-prefixes=ARCH-TUNE,FRECIPE,LAM-BH,LAMCAS,DIV32 -DARCH=la64v1.0 -DTUNE=loongarch64 %s
854+
// RUN: FileCheck --match-full-lines --check-prefixes=ARCH-TUNE,FRECIPE,LAM-BH,LAMCAS,DIV32,SCQ -DARCH=la64v1.0 -DTUNE=loongarch64 %s
855855
// RUN: %clang --target=loongarch64 -x c -E -dM %s -o - -march=loongarch64 -Xclang -target-feature -Xclang +ld-seq-sa | \
856856
// RUN: FileCheck --match-full-lines --check-prefixes=ARCH-TUNE,LD-SEQ-SA -DARCH=loongarch64 -DTUNE=loongarch64 %s
857857
// RUN: %clang --target=loongarch64 -x c -E -dM %s -o - -march=loongarch64 -Xclang -target-feature -Xclang +lsx -Xclang -target-feature -Xclang +ld-seq-sa | \
858858
// RUN: FileCheck --match-full-lines --check-prefixes=ARCH-TUNE,LD-SEQ-SA -DARCH=la64v1.0 -DTUNE=loongarch64 %s
859859
// RUN: %clang --target=loongarch64 -x c -E -dM %s -o - -march=la64v1.0 -Xclang -target-feature -Xclang +div32 | \
860860
// RUN: FileCheck --match-full-lines --check-prefixes=ARCH-TUNE,DIV32 -DARCH=la64v1.0 -DTUNE=loongarch64 %s
861861
// RUN: %clang --target=loongarch64 -x c -E -dM %s -o - -march=la64v1.1 -Xclang -target-feature -Xclang -div32| \
862-
// RUN: FileCheck --match-full-lines --check-prefixes=ARCH-TUNE,FRECIPE,LAM-BH,LAMCAS,LD-SEQ-SA -DARCH=la64v1.0 -DTUNE=loongarch64 %s
862+
// RUN: FileCheck --match-full-lines --check-prefixes=ARCH-TUNE,FRECIPE,LAM-BH,LAMCAS,LD-SEQ-SA,SCQ -DARCH=la64v1.0 -DTUNE=loongarch64 %s
863863
// RUN: %clang --target=loongarch64 -x c -E -dM %s -o - -march=loongarch64 -Xclang -target-feature -Xclang +div32 | \
864864
// RUN: FileCheck --match-full-lines --check-prefixes=ARCH-TUNE,DIV32 -DARCH=loongarch64 -DTUNE=loongarch64 %s
865865
// RUN: %clang --target=loongarch64 -x c -E -dM %s -o - -march=loongarch64 -Xclang -target-feature -Xclang +lsx -Xclang -target-feature -Xclang +div32 | \
866866
// RUN: FileCheck --match-full-lines --check-prefixes=ARCH-TUNE,DIV32 -DARCH=la64v1.0 -DTUNE=loongarch64 %s
867-
// RUN: %clang --target=loongarch64 -x c -E -dM %s -o - -march=la64v1.0 -Xclang -target-feature -Xclang +frecipe -Xclang -target-feature -Xclang +lam-bh -Xclang -target-feature -Xclang +lamcas -Xclang -target-feature -Xclang +ld-seq-sa -Xclang -target-feature -Xclang +div32 | \
867+
// RUN: %clang --target=loongarch64 -x c -E -dM %s -o - -march=la64v1.0 -Xclang -target-feature -Xclang +scq | \
868+
// RUN: FileCheck --match-full-lines --check-prefixes=ARCH-TUNE,SCQ -DARCH=la64v1.0 -DTUNE=loongarch64 %s
869+
// RUN: %clang --target=loongarch64 -x c -E -dM %s -o - -march=la64v1.1 -Xclang -target-feature -Xclang -scq | \
870+
// RUN: FileCheck --match-full-lines --check-prefixes=ARCH-TUNE,FRECIPE,LAM-BH,LAMCAS,LD-SEQ-SA,DIV32 -DARCH=la64v1.0 -DTUNE=loongarch64 %s
871+
// RUN: %clang --target=loongarch64 -x c -E -dM %s -o - -march=loongarch64 -Xclang -target-feature -Xclang +scq | \
872+
// RUN: FileCheck --match-full-lines --check-prefixes=ARCH-TUNE,SCQ -DARCH=loongarch64 -DTUNE=loongarch64 %s
873+
// RUN: %clang --target=loongarch64 -x c -E -dM %s -o - -march=loongarch64 -Xclang -target-feature -Xclang +lsx -Xclang -target-feature -Xclang +scq | \
874+
// RUN: FileCheck --match-full-lines --check-prefixes=ARCH-TUNE,SCQ -DARCH=la64v1.0 -DTUNE=loongarch64 %s
875+
// RUN: %clang --target=loongarch64 -x c -E -dM %s -o - -march=la64v1.0 -Xclang -target-feature -Xclang +frecipe -Xclang -target-feature -Xclang +lam-bh -Xclang -target-feature -Xclang +lamcas -Xclang -target-feature -Xclang +ld-seq-sa -Xclang -target-feature -Xclang +div32 -Xclang -target-feature -Xclang +scq | \
868876
// RUN: FileCheck --match-full-lines --check-prefixes=ARCH-TUNE -DARCH=la64v1.1 -DTUNE=loongarch64 %s
869877
// RUN: %clang --target=loongarch64 -x c -E -dM %s -o - -march=la664 | \
870-
// RUN: FileCheck --match-full-lines --check-prefixes=ARCH-TUNE,FRECIPE,LAM-BH,LAMCAS,LD-SEQ-SA,DIV32 -DARCH=la664 -DTUNE=la664 %s
878+
// RUN: FileCheck --match-full-lines --check-prefixes=ARCH-TUNE,FRECIPE,LAM-BH,LAMCAS,LD-SEQ-SA,DIV32,SCQ -DARCH=la664 -DTUNE=la664 %s
871879
// RUN: %clang --target=loongarch64 -x c -E -dM %s -o - -mtune=la664 | \
872880
// RUN: FileCheck --match-full-lines --check-prefix=ARCH-TUNE -DARCH=la64v1.0 -DTUNE=la664 %s
873881
// RUN: %clang --target=loongarch64 -x c -E -dM %s -o - -march=loongarch64 -mtune=la664 | \
874882
// RUN: FileCheck --match-full-lines --check-prefix=ARCH-TUNE -DARCH=loongarch64 -DTUNE=la664 %s
875883
// RUN: %clang --target=loongarch64 -x c -E -dM %s -o - -march=la664 -mtune=loongarch64 | \
876-
// RUN: FileCheck --match-full-lines --check-prefixes=ARCH-TUNE,FRECIPE,LAM-BH,LAMCAS,LD-SEQ-SA,DIV32 -DARCH=la664 -DTUNE=loongarch64 %s
884+
// RUN: FileCheck --match-full-lines --check-prefixes=ARCH-TUNE,FRECIPE,LAM-BH,LAMCAS,LD-SEQ-SA,DIV32,SCQ -DARCH=la664 -DTUNE=loongarch64 %s
877885

878886
// ARCH-TUNE: #define __loongarch_arch "[[ARCH]]"
879887
// DIV32: #define __loongarch_div32 1
880888
// FRECIPE: #define __loongarch_frecipe 1
881889
// LAM-BH: #define __loongarch_lam_bh 1
882890
// LAMCAS: #define __loongarch_lamcas 1
883891
// LD-SEQ-SA: #define __loongarch_ld_seq_sa 1
892+
// SCQ: #define __loongarch_scq 1
884893
// ARCH-TUNE: #define __loongarch_tune "[[TUNE]]"
885894

886895
// RUN: %clang --target=loongarch64 -mlsx -x c -E -dM %s -o - \

‎llvm/include/llvm/TargetParser/LoongArchTargetParser.def

Lines changed: 2 additions & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -15,6 +15,7 @@ LOONGARCH_FEATURE("+lam-bh", FK_LAM_BH)
1515
LOONGARCH_FEATURE("+lamcas", FK_LAMCAS)
1616
LOONGARCH_FEATURE("+ld-seq-sa", FK_LD_SEQ_SA)
1717
LOONGARCH_FEATURE("+div32", FK_DIV32)
18+
LOONGARCH_FEATURE("+scq", FK_SCQ)
1819

1920
#undef LOONGARCH_FEATURE
2021

@@ -24,6 +25,6 @@ LOONGARCH_FEATURE("+div32", FK_DIV32)
2425

2526
LOONGARCH_ARCH("loongarch64", AK_LOONGARCH64, FK_64BIT | FK_FP32 | FK_FP64 | FK_UAL)
2627
LOONGARCH_ARCH("la464", AK_LA464, FK_64BIT | FK_FP32 | FK_FP64 | FK_LSX | FK_LASX | FK_UAL)
27-
LOONGARCH_ARCH("la664", AK_LA664, FK_64BIT | FK_FP32 | FK_FP64 | FK_LSX | FK_LASX | FK_UAL | FK_FRECIPE | FK_LAM_BH | FK_LAMCAS | FK_LD_SEQ_SA | FK_DIV32)
28+
LOONGARCH_ARCH("la664", AK_LA664, FK_64BIT | FK_FP32 | FK_FP64 | FK_LSX | FK_LASX | FK_UAL | FK_FRECIPE | FK_LAM_BH | FK_LAMCAS | FK_LD_SEQ_SA | FK_DIV32 | FK_SCQ)
2829

2930
#undef LOONGARCH_ARCH

‎llvm/include/llvm/TargetParser/LoongArchTargetParser.h

Lines changed: 3 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -63,6 +63,9 @@ enum FeatureKind : uint32_t {
6363

6464
// Assume div.w[u] and mod.w[u] can handle inputs that are not sign-extended.
6565
FK_DIV32 = 1 << 13,
66+
67+
// sc.q is available.
68+
FK_SCQ = 1 << 14,
6669
};
6770

6871
struct FeatureInfo {

‎llvm/lib/Target/LoongArch/LoongArch.td

Lines changed: 8 additions & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -135,6 +135,12 @@ def FeatureDiv32
135135
"Assume div.w[u] and mod.w[u] can handle inputs that are not sign-extended">;
136136
def HasDiv32 : Predicate<"Subtarget->hasDiv32()">;
137137

138+
// Support SC.Q instruction
139+
def FeatureSCQ
140+
: SubtargetFeature<"scq", "HasSCQ", "true",
141+
"Support sc.q instruction">;
142+
def HasSCQ : Predicate<"Subtarget->hasSCQ()">;
143+
138144
def TunePreferWInst
139145
: SubtargetFeature<"prefer-w-inst", "PreferWInst", "true",
140146
"Prefer instructions with W suffix">;
@@ -180,7 +186,8 @@ def : ProcessorModel<"la664", NoSchedModel, [Feature64Bit,
180186
FeatureLAM_BH,
181187
FeatureLAMCAS,
182188
FeatureLD_SEQ_SA,
183-
FeatureDiv32]>;
189+
FeatureDiv32,
190+
FeatureSCQ]>;
184191

185192
//===----------------------------------------------------------------------===//
186193
// Define the LoongArch target.

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