Merge "Add a new x86(_64) arch variant "goldmont-without-xsaves"" into main

android/arch_list.go

@@ -34,6 +34,11 @@ var archVariants = map[ArchType][]string{
 		"broadwell",
 		"goldmont",
 		"goldmont-plus",
+		// Target arch is goldmont, but without xsaves support.
+		// This ensures efficient execution on a broad range of Intel/AMD CPUs used
+		// in Chromebooks, including those lacking xsaves support.
+		// (e.g. Kaby Lake, Gemini Lake, Alder Lake and AMD Zen series)
+		"goldmont-without-xsaves",
 		"haswell",
 		"icelake",
 		"ivybridge",
@@ -52,6 +57,7 @@ var archVariants = map[ArchType][]string{
 		"broadwell",
 		"goldmont",
 		"goldmont-plus",
+		"goldmont-without-xsaves",
 		"haswell",
 		"icelake",
 		"ivybridge",
@@ -197,6 +203,15 @@ var androidArchFeatureMap = map[ArchType]map[string][]string{
 			"popcnt",
 			"movbe",
 		},
+		"goldmont-without-xsaves": {
+			"ssse3",
+			"sse4",
+			"sse4_1",
+			"sse4_2",
+			"aes_ni",
+			"popcnt",
+			"movbe",
+		},
 		"haswell": {
 			"ssse3",
 			"sse4",
@@ -358,6 +373,14 @@ var androidArchFeatureMap = map[ArchType]map[string][]string{
 			"aes_ni",
 			"popcnt",
 		},
+		"goldmont-without-xsaves": {
+			"ssse3",
+			"sse4",
+			"sse4_1",
+			"sse4_2",
+			"aes_ni",
+			"popcnt",
+		},
 		"haswell": {
 			"ssse3",
 			"sse4",

cc/config/x86_64_device.go

@@ -49,6 +49,10 @@ var (
 		"goldmont-plus": []string{
 			"-march=goldmont-plus",
 		},
+		"goldmont-without-xsaves": []string{
+			"-march=goldmont",
+			"-mno-xsaves",
+		},
 		"haswell": []string{
 			"-march=core-avx2",
 		},

cc/config/x86_device.go

@@ -56,6 +56,10 @@ var (
 		"goldmont-plus": []string{
 			"-march=goldmont-plus",
 		},
+		"goldmont-without-xsaves": []string{
+			"-march=goldmont",
+			"-mno-xsaves",
+		},
 		"haswell": []string{
 			"-march=core-avx2",
 		},

rust/config/x86_64_device.go

@@ -32,6 +32,7 @@ var (
 		"broadwell":               []string{"-C target-cpu=broadwell"},
 		"goldmont":                []string{"-C target-cpu=goldmont"},
 		"goldmont-plus":           []string{"-C target-cpu=goldmont-plus"},
+		"goldmont-without-xsaves": []string{"-C target-cpu=goldmont", "-C target-feature=-xsaves"},
 		"haswell":                 []string{"-C target-cpu=haswell"},
 		"ivybridge":               []string{"-C target-cpu=ivybridge"},
 		"sandybridge":             []string{"-C target-cpu=sandybridge"},

rust/config/x86_device.go

@@ -31,6 +31,7 @@ var (
 		"broadwell":               []string{"-C target-cpu=broadwell"},
 		"goldmont":                []string{"-C target-cpu=goldmont"},
 		"goldmont-plus":           []string{"-C target-cpu=goldmont-plus"},
+		"goldmont-without-xsaves": []string{"-C target-cpu=goldmont", "-C target-feature=-xsaves"},
 		"haswell":                 []string{"-C target-cpu=haswell"},
 		"ivybridge":               []string{"-C target-cpu=ivybridge"},
 		"sandybridge":             []string{"-C target-cpu=sandybridge"},