[llvm] [NVPTX] Add support for PTX ISA v8.8 (PR #136639)
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Mon Apr 21 18:27:38 PDT 2025
llvmbot wrote:
<!--LLVM PR SUMMARY COMMENT-->
@llvm/pr-subscribers-backend-nvptx
Author: Princeton Ferro (Prince781)
<details>
<summary>Changes</summary>
Support PTX version 8.8 (`-mattr=+ptx88`) from CUDA 12.9. The following new targets are also added:
- Family-specific targets, which are compatible with all the subsequent architectures belonging to the same GPU family: sm_100f, sm_101f, sm_103f, sm_120f, sm_121f.
- New archs: SM103 and SM121: sm_103, sm_103a, sm_121, sm_121a.
Also, some things were reformatted.
---
Full diff: https://github.com/llvm/llvm-project/pull/136639.diff
2 Files Affected:
- (modified) llvm/lib/Target/NVPTX/NVPTX.td (+48-27)
- (modified) llvm/test/CodeGen/NVPTX/sm-version.ll (+36)
``````````diff
diff --git a/llvm/lib/Target/NVPTX/NVPTX.td b/llvm/lib/Target/NVPTX/NVPTX.td
index 5467ae011a208..895f331ed3124 100644
--- a/llvm/lib/Target/NVPTX/NVPTX.td
+++ b/llvm/lib/Target/NVPTX/NVPTX.td
@@ -36,17 +36,29 @@ class FeaturePTX<int version>:
foreach sm = [20, 21, 30, 32, 35, 37, 50, 52, 53,
60, 61, 62, 70, 72, 75, 80, 86, 87,
- 89, 90, 100, 101, 120] in
+ 89, 90, 100, 101, 103, 120, 121] in
def SM#sm: FeatureSM<""#sm, !mul(sm, 10)>;
-def SM90a: FeatureSM<"90a", 901>;
+// Arch-specific targets. PTX for these is not compatible with any other
+// architectures.
+def SM90a : FeatureSM<"90a", 901>;
def SM100a: FeatureSM<"100a", 1001>;
def SM101a: FeatureSM<"101a", 1011>;
+def SM103a: FeatureSM<"103a", 1031>;
def SM120a: FeatureSM<"120a", 1201>;
+def SM121a: FeatureSM<"121a", 1211>;
+
+// Family-specific targets. PTX for these is compatible with all subsequent
+// targets in the same family.
+def SM100f: FeatureSM<"100f", 1002>;
+def SM101f: FeatureSM<"101f", 1012>;
+def SM103f: FeatureSM<"103f", 1032>;
+def SM120f: FeatureSM<"120f", 1202>;
+def SM121f: FeatureSM<"121f", 1212>;
foreach version = [32, 40, 41, 42, 43, 50, 60, 61, 62, 63, 64, 65,
70, 71, 72, 73, 74, 75, 76, 77, 78,
- 80, 81, 82, 83, 84, 85, 86, 87] in
+ 80, 81, 82, 83, 84, 85, 86, 87, 88] in
def PTX#version: FeaturePTX<version>;
//===----------------------------------------------------------------------===//
@@ -56,33 +68,42 @@ foreach version = [32, 40, 41, 42, 43, 50, 60, 61, 62, 63, 64, 65,
class Proc<string Name, list<SubtargetFeature> Features>
: Processor<Name, NoItineraries, Features>;
-def : Proc<"sm_20", [SM20, PTX32]>;
-def : Proc<"sm_21", [SM21, PTX32]>;
-def : Proc<"sm_30", [SM30]>;
-def : Proc<"sm_32", [SM32, PTX40]>;
-def : Proc<"sm_35", [SM35, PTX32]>;
-def : Proc<"sm_37", [SM37, PTX41]>;
-def : Proc<"sm_50", [SM50, PTX40]>;
-def : Proc<"sm_52", [SM52, PTX41]>;
-def : Proc<"sm_53", [SM53, PTX42]>;
-def : Proc<"sm_60", [SM60, PTX50]>;
-def : Proc<"sm_61", [SM61, PTX50]>;
-def : Proc<"sm_62", [SM62, PTX50]>;
-def : Proc<"sm_70", [SM70, PTX60]>;
-def : Proc<"sm_72", [SM72, PTX61]>;
-def : Proc<"sm_75", [SM75, PTX63]>;
-def : Proc<"sm_80", [SM80, PTX70]>;
-def : Proc<"sm_86", [SM86, PTX71]>;
-def : Proc<"sm_87", [SM87, PTX74]>;
-def : Proc<"sm_89", [SM89, PTX78]>;
-def : Proc<"sm_90", [SM90, PTX78]>;
-def : Proc<"sm_90a", [SM90a, PTX80]>;
-def : Proc<"sm_100", [SM100, PTX86]>;
+def : Proc<"sm_20", [SM20, PTX32]>;
+def : Proc<"sm_21", [SM21, PTX32]>;
+def : Proc<"sm_30", [SM30]>;
+def : Proc<"sm_32", [SM32, PTX40]>;
+def : Proc<"sm_35", [SM35, PTX32]>;
+def : Proc<"sm_37", [SM37, PTX41]>;
+def : Proc<"sm_50", [SM50, PTX40]>;
+def : Proc<"sm_52", [SM52, PTX41]>;
+def : Proc<"sm_53", [SM53, PTX42]>;
+def : Proc<"sm_60", [SM60, PTX50]>;
+def : Proc<"sm_61", [SM61, PTX50]>;
+def : Proc<"sm_62", [SM62, PTX50]>;
+def : Proc<"sm_70", [SM70, PTX60]>;
+def : Proc<"sm_72", [SM72, PTX61]>;
+def : Proc<"sm_75", [SM75, PTX63]>;
+def : Proc<"sm_80", [SM80, PTX70]>;
+def : Proc<"sm_86", [SM86, PTX71]>;
+def : Proc<"sm_87", [SM87, PTX74]>;
+def : Proc<"sm_89", [SM89, PTX78]>;
+def : Proc<"sm_90", [SM90, PTX78]>;
+def : Proc<"sm_90a", [SM90a, PTX80]>;
+def : Proc<"sm_100", [SM100, PTX86]>;
def : Proc<"sm_100a", [SM100a, PTX86]>;
-def : Proc<"sm_101", [SM101, PTX86]>;
+def : Proc<"sm_100f", [SM100f, PTX88]>;
+def : Proc<"sm_101", [SM101, PTX86]>;
def : Proc<"sm_101a", [SM101a, PTX86]>;
-def : Proc<"sm_120", [SM120, PTX87]>;
+def : Proc<"sm_101f", [SM101f, PTX88]>;
+def : Proc<"sm_103", [SM103, PTX88]>;
+def : Proc<"sm_103a", [SM103a, PTX88]>;
+def : Proc<"sm_103f", [SM103f, PTX88]>;
+def : Proc<"sm_120", [SM120, PTX87]>;
def : Proc<"sm_120a", [SM120a, PTX87]>;
+def : Proc<"sm_120f", [SM120f, PTX88]>;
+def : Proc<"sm_121", [SM121, PTX88]>;
+def : Proc<"sm_121a", [SM121a, PTX88]>;
+def : Proc<"sm_121f", [SM121f, PTX88]>;
def NVPTXInstrInfo : InstrInfo {
}
diff --git a/llvm/test/CodeGen/NVPTX/sm-version.ll b/llvm/test/CodeGen/NVPTX/sm-version.ll
index ce9a1b1b161dc..3a154a1b9ac9c 100644
--- a/llvm/test/CodeGen/NVPTX/sm-version.ll
+++ b/llvm/test/CodeGen/NVPTX/sm-version.ll
@@ -18,10 +18,19 @@
; RUN: llc < %s -mtriple=nvptx -mcpu=sm_90a | FileCheck %s --check-prefix=SM90a
; RUN: llc < %s -mtriple=nvptx -mcpu=sm_100 | FileCheck %s --check-prefix=SM100
; RUN: llc < %s -mtriple=nvptx -mcpu=sm_100a | FileCheck %s --check-prefix=SM100a
+; RUN: llc < %s -mtriple=nvptx -mcpu=sm_100f | FileCheck %s --check-prefix=SM100f
; RUN: llc < %s -mtriple=nvptx -mcpu=sm_101 | FileCheck %s --check-prefix=SM101
; RUN: llc < %s -mtriple=nvptx -mcpu=sm_101a | FileCheck %s --check-prefix=SM101a
+; RUN: llc < %s -mtriple=nvptx -mcpu=sm_101f | FileCheck %s --check-prefix=SM101f
+; RUN: llc < %s -mtriple=nvptx -mcpu=sm_103 | FileCheck %s --check-prefix=SM103
+; RUN: llc < %s -mtriple=nvptx -mcpu=sm_103a | FileCheck %s --check-prefix=SM103a
+; RUN: llc < %s -mtriple=nvptx -mcpu=sm_103f | FileCheck %s --check-prefix=SM103f
; RUN: llc < %s -mtriple=nvptx -mcpu=sm_120 | FileCheck %s --check-prefix=SM120
; RUN: llc < %s -mtriple=nvptx -mcpu=sm_120a | FileCheck %s --check-prefix=SM120a
+; RUN: llc < %s -mtriple=nvptx -mcpu=sm_120f | FileCheck %s --check-prefix=SM120f
+; RUN: llc < %s -mtriple=nvptx -mcpu=sm_121 | FileCheck %s --check-prefix=SM121
+; RUN: llc < %s -mtriple=nvptx -mcpu=sm_121a | FileCheck %s --check-prefix=SM121a
+; RUN: llc < %s -mtriple=nvptx -mcpu=sm_121f | FileCheck %s --check-prefix=SM121f
; RUN: llc < %s -mtriple=nvptx64 -mcpu=sm_20 | FileCheck %s --check-prefix=SM20
; RUN: llc < %s -mtriple=nvptx64 -mcpu=sm_21 | FileCheck %s --check-prefix=SM21
@@ -43,10 +52,19 @@
; RUN: llc < %s -mtriple=nvptx64 -mcpu=sm_90a | FileCheck %s --check-prefix=SM90a
; RUN: llc < %s -mtriple=nvptx64 -mcpu=sm_100 | FileCheck %s --check-prefix=SM100
; RUN: llc < %s -mtriple=nvptx64 -mcpu=sm_100a | FileCheck %s --check-prefix=SM100a
+; RUN: llc < %s -mtriple=nvptx64 -mcpu=sm_100f | FileCheck %s --check-prefix=SM100f
; RUN: llc < %s -mtriple=nvptx64 -mcpu=sm_101 | FileCheck %s --check-prefix=SM101
; RUN: llc < %s -mtriple=nvptx64 -mcpu=sm_101a | FileCheck %s --check-prefix=SM101a
+; RUN: llc < %s -mtriple=nvptx64 -mcpu=sm_101f | FileCheck %s --check-prefix=SM101f
+; RUN: llc < %s -mtriple=nvptx64 -mcpu=sm_103 | FileCheck %s --check-prefix=SM103
+; RUN: llc < %s -mtriple=nvptx64 -mcpu=sm_103a | FileCheck %s --check-prefix=SM103a
+; RUN: llc < %s -mtriple=nvptx64 -mcpu=sm_103f | FileCheck %s --check-prefix=SM103f
; RUN: llc < %s -mtriple=nvptx64 -mcpu=sm_120 | FileCheck %s --check-prefix=SM120
; RUN: llc < %s -mtriple=nvptx64 -mcpu=sm_120a | FileCheck %s --check-prefix=SM120a
+; RUN: llc < %s -mtriple=nvptx64 -mcpu=sm_120f | FileCheck %s --check-prefix=SM120f
+; RUN: llc < %s -mtriple=nvptx64 -mcpu=sm_121 | FileCheck %s --check-prefix=SM121
+; RUN: llc < %s -mtriple=nvptx64 -mcpu=sm_121a | FileCheck %s --check-prefix=SM121a
+; RUN: llc < %s -mtriple=nvptx64 -mcpu=sm_121f | FileCheck %s --check-prefix=SM121f
; SM20: .version 3.2
; SM21: .version 3.2
@@ -68,10 +86,19 @@
; SM90a: .version 8.0
; SM100: .version 8.6
; SM100a: .version 8.6
+; SM100f: .version 8.8
; SM101: .version 8.6
; SM101a: .version 8.6
+; SM101f: .version 8.8
+; SM103: .version 8.8
+; SM103a: .version 8.8
+; SM103f: .version 8.8
; SM120: .version 8.7
; SM120a: .version 8.7
+; SM120f: .version 8.8
+; SM121: .version 8.8
+; SM121a: .version 8.8
+; SM121f: .version 8.8
; SM20: .target sm_20
; SM21: .target sm_21
@@ -93,7 +120,16 @@
; SM90a: .target sm_90a
; SM100: .target sm_100
; SM100a: .target sm_100a
+; SM100f: .target sm_100f
; SM101: .target sm_101
; SM101a: .target sm_101a
+; SM101f: .target sm_101f
+; SM103: .target sm_103
+; SM103a: .target sm_103a
+; SM103f: .target sm_103f
; SM120: .target sm_120
; SM120a: .target sm_120a
+; SM120f: .target sm_120f
+; SM121: .target sm_121
+; SM121a: .target sm_121a
+; SM121f: .target sm_121f
``````````
</details>
https://github.com/llvm/llvm-project/pull/136639
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