[MIPS] Add support for mips32r1 arch variant

Change-Id: I37dfecd8c92f3f34c117432956d169f4b191c849 Reviewed-on: https://swiftshader-review.googlesource.com/c/23248Reviewed-by: Nicolas Capens <nicolascapens@google.com> Tested-by: Milko Leporis <milko.leporis@mips.com>

[MIPS] Add support for mips32r1 arch variant
05069822 · Milko Leporis · 6d8d3c36 · 05069822
Commit 05069822 authored Dec 18, 2018 by Milko Leporis
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Showing with 19 additions and 2 deletions

BUILD.gn BUILD.gn +19 -2

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--- a/BUILD.gn
+++ b/BUILD.gn
@@ -14,6 +14,7 @@
 import("//build/config/c++/c++.gni")
 import("//build/config/compiler/compiler.gni")
+import("//build/config/mips.gni")
 config("swiftshader_config") {
  defines = []
@@ -99,11 +100,19 @@ config("swiftshader_config") {
    } else if (target_cpu == "mipsel" && current_cpu == target_cpu) {
      cflags += [
        "-march=mipsel",
-        "-mcpu=mips32r2",
        "-fPIC",
        "-mhard-float",
        "-mfp32",
      ]
+      if (mips_arch_variant == "r1") {
+        cflags += [
+          "-mcpu=mips32",
+        ]
+      } else {
+        cflags += [
+          "-mcpu=mips32r2",
+        ]
+      }
    } else if (target_cpu == "mips64el" && current_cpu == target_cpu) {
      cflags += [
        "-march=mips64el",
@@ -119,8 +128,16 @@ config("swiftshader_config") {
      if (target_cpu == "mipsel") {
        ldflags += [
          "-Wl,--hash-style=sysv",
-          "-mips32r2",
        ]
+        if (mips_arch_variant == "r1") {
+          ldflags += [
+            "-mips32",
+          ]
+        } else {
+          ldflags += [
+            "-mips32r2",
+          ]
+        }
      } else if (target_cpu == "mips64el") {
        ldflags += [
          "-Wl,--hash-style=sysv",