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[LoongArch] Support la664 (#100068)
A new ProcessorModel called `la664` is defined in LoongArch.td to support `-march/-mtune=la664`.
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‎clang/test/Driver/loongarch-march.c

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@@ -6,6 +6,8 @@
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// RUN: FileCheck %s --check-prefix=CC1-LA64V1P0
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// RUN: %clang --target=loongarch64 -march=la64v1.1 -fsyntax-only %s -### 2>&1 | \
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// RUN: FileCheck %s --check-prefix=CC1-LA64V1P1
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// RUN: %clang --target=loongarch64 -march=la664 -fsyntax-only %s -### 2>&1 | \
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// RUN: FileCheck %s --check-prefix=CC1-LA664
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// RUN: %clang --target=loongarch64 -march=loongarch64 -S -emit-llvm %s -o - | \
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// RUN: FileCheck %s --check-prefix=IR-LOONGARCH64
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// RUN: %clang --target=loongarch64 -march=la464 -S -emit-llvm %s -o - | \
@@ -14,6 +16,8 @@
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// RUN: FileCheck %s --check-prefix=IR-LA64V1P0
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// RUN: %clang --target=loongarch64 -march=la64v1.1 -S -emit-llvm %s -o - | \
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// RUN: FileCheck %s --check-prefix=IR-LA64V1P1
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// RUN: %clang --target=loongarch64 -march=la664 -S -emit-llvm %s -o - | \
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// RUN: FileCheck %s --check-prefix=IR-LA664
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// CC1-LOONGARCH64: "-target-cpu" "loongarch64"
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// CC1-LOONGARCH64-NOT: "-target-feature"
@@ -39,10 +43,17 @@
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// CC1-LA64V1P1-NOT: "-target-feature"
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// CC1-LA64V1P1: "-target-abi" "lp64d"
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// CC1-LA664: "-target-cpu" "la664"
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// CC1-LA664-NOT: "-target-feature"
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// CC1-LA664: "-target-feature" "+64bit" "-target-feature" "+f" "-target-feature" "+d" "-target-feature" "+lsx" "-target-feature" "+lasx" "-target-feature" "+ual" "-target-feature" "+frecipe"
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// CC1-LA664-NOT: "-target-feature"
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// CC1-LA664: "-target-abi" "lp64d"
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// IR-LOONGARCH64: attributes #[[#]] ={{.*}}"target-cpu"="loongarch64" {{.*}}"target-features"="+64bit,+d,+f,+ual"
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// IR-LA464: attributes #[[#]] ={{.*}}"target-cpu"="la464" {{.*}}"target-features"="+64bit,+d,+f,+lasx,+lsx,+ual"
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// IR-LA64V1P0: attributes #[[#]] ={{.*}}"target-cpu"="loongarch64" {{.*}}"target-features"="+64bit,+d,+lsx,+ual"
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// IR-LA64V1P1: attributes #[[#]] ={{.*}}"target-cpu"="loongarch64" {{.*}}"target-features"="+64bit,+d,+frecipe,+lsx,+ual"
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// IR-LA664: attributes #[[#]] ={{.*}}"target-cpu"="la664" {{.*}}"target-features"="+64bit,+d,+f,+frecipe,+lasx,+lsx,+ual"
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int foo(void) {
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return 3;

‎clang/test/Driver/loongarch-mtune.c

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@@ -8,6 +8,11 @@
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// RUN: %clang --target=loongarch64 -mtune=la464 -S -emit-llvm %s -o - | \
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// RUN: FileCheck %s --check-prefix=IRATTR -DCPU=la464
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// RUN: %clang --target=loongarch64 -mtune=la664 -fsyntax-only %s -### 2>&1 | \
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// RUN: FileCheck %s --check-prefix=CC1ARG -DCPU=la664
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// RUN: %clang --target=loongarch64 -mtune=la664 -S -emit-llvm %s -o - | \
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// RUN: FileCheck %s --check-prefix=IRATTR -DCPU=la664
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// RUN: %clang --target=loongarch64 -mtune=invalidcpu -fsyntax-only %s -### 2>&1 | \
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// RUN: FileCheck %s --check-prefix=CC1ARG -DCPU=invalidcpu
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// RUN: not %clang --target=loongarch64 -mtune=invalidcpu -S -emit-llvm %s -o /dev/null 2>&1 | \

‎clang/test/Preprocessor/init-loongarch.c

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@@ -832,6 +832,14 @@
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// RUN: FileCheck --match-full-lines --check-prefixes=ARCH-TUNE,FRECIPE -DARCH=loongarch64 -DTUNE=loongarch64 %s
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// RUN: %clang --target=loongarch64 -x c -E -dM %s -o - -march=loongarch64 -Xclang -target-feature -Xclang +lsx -Xclang -target-feature -Xclang +frecipe | \
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// RUN: FileCheck --match-full-lines --check-prefixes=ARCH-TUNE,FRECIPE -DARCH=la64v1.1 -DTUNE=loongarch64 %s
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// RUN: %clang --target=loongarch64 -x c -E -dM %s -o - -march=la664 | \
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// RUN: FileCheck --match-full-lines --check-prefixes=ARCH-TUNE,FRECIPE -DARCH=la664 -DTUNE=la664 %s
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// RUN: %clang --target=loongarch64 -x c -E -dM %s -o - -mtune=la664 | \
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// RUN: FileCheck --match-full-lines --check-prefix=ARCH-TUNE -DARCH=loongarch64 -DTUNE=la664 %s
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// RUN: %clang --target=loongarch64 -x c -E -dM %s -o - -march=loongarch64 -mtune=la664 | \
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// RUN: FileCheck --match-full-lines --check-prefix=ARCH-TUNE -DARCH=loongarch64 -DTUNE=la664 %s
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// RUN: %clang --target=loongarch64 -x c -E -dM %s -o - -march=la664 -mtune=loongarch64 | \
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// RUN: FileCheck --match-full-lines --check-prefixes=ARCH-TUNE,FRECIPE -DARCH=la664 -DTUNE=loongarch64 %s
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// ARCH-TUNE: #define __loongarch_arch "[[ARCH]]"
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// FRECIPE: #define __loongarch_frecipe 1

‎llvm/include/llvm/TargetParser/LoongArchTargetParser.def

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@@ -10,6 +10,7 @@ LOONGARCH_FEATURE("+lasx", FK_LASX)
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LOONGARCH_FEATURE("+lbt", FK_LBT)
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LOONGARCH_FEATURE("+lvz", FK_LVZ)
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LOONGARCH_FEATURE("+ual", FK_UAL)
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LOONGARCH_FEATURE("+frecipe", FK_FRECIPE)
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#undef LOONGARCH_FEATURE
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@@ -19,5 +20,6 @@ LOONGARCH_FEATURE("+ual", FK_UAL)
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LOONGARCH_ARCH("loongarch64", AK_LOONGARCH64, FK_64BIT | FK_FP32 | FK_FP64 | FK_UAL)
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LOONGARCH_ARCH("la464", AK_LA464, FK_64BIT | FK_FP32 | FK_FP64 | FK_LSX | FK_LASX | FK_UAL)
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LOONGARCH_ARCH("la664", AK_LA664, FK_64BIT | FK_FP32 | FK_FP64 | FK_LSX | FK_LASX | FK_UAL | FK_FRECIPE)
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#undef LOONGARCH_ARCH

‎llvm/include/llvm/TargetParser/LoongArchTargetParser.h

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@@ -46,6 +46,9 @@ enum FeatureKind : uint32_t {
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// Allow memory accesses to be unaligned.
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FK_UAL = 1 << 8,
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// Floating-point approximate reciprocal instructions are available.
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FK_FRECIPE = 1 << 9,
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};
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struct FeatureInfo {

‎llvm/lib/Target/LoongArch/LoongArch.td

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@@ -151,6 +151,13 @@ def : ProcessorModel<"la464", NoSchedModel, [Feature64Bit,
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FeatureExtLVZ,
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FeatureExtLBT]>;
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def : ProcessorModel<"la664", NoSchedModel, [Feature64Bit,
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FeatureUAL,
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FeatureExtLASX,
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FeatureExtLVZ,
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FeatureExtLBT,
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FeatureFrecipe]>;
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//===----------------------------------------------------------------------===//
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// Define the LoongArch target.
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//===----------------------------------------------------------------------===//

‎llvm/lib/TargetParser/Host.cpp

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@@ -1562,6 +1562,8 @@ StringRef sys::getHostCPUName() {
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switch (processor_id & 0xf000) {
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case 0xc000: // Loongson 64bit, 4-issue
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return "la464";
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case 0xd000: // Loongson 64bit, 6-issue
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return "la664";
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// TODO: Others.
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default:
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break;

‎llvm/test/CodeGen/LoongArch/cpus.ll

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@@ -3,6 +3,7 @@
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; RUN: llc < %s --mtriple=loongarch64 -mattr=+d --mcpu=loongarch64 2>&1 | FileCheck %s
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; RUN: llc < %s --mtriple=loongarch64 -mattr=+d --mcpu=la464 2>&1 | FileCheck %s
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; RUN: llc < %s --mtriple=loongarch64 -mattr=+d --mcpu=la664 2>&1 | FileCheck %s
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; RUN: llc < %s --mtriple=loongarch64 -mattr=+d 2>&1 | FileCheck %s
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; CHECK-NOT: {{.*}} is not a recognized processor for this target
@@ -18,3 +19,7 @@ define void @tune_cpu_loongarch64() "tune-cpu"="loongarch64" {
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define void @tune_cpu_la464() "tune-cpu"="la464" {
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ret void
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}
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define void @tune_cpu_la664() "tune-cpu"="la664" {
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ret void
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}

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