[compiler-rt][mips] Add support for quad precision builtins for mips64

Match the builtins that GCC provides for IEEE754 quad precision
on MIPS64. Also, enable building them with clang as PR20098 is resolved.

Disable tests for xf and xc modes as MIPS doesn't support that mode in
hardware or software.

Reviewers: slthakur

Differential Revision: https://reviews.llvm.org/D32794



git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@302147 91177308-0d34-0410-b5e6-96231b3b80d8

9 files changed, 38 insertions, 23 deletions

diff --git a/lib/builtins/CMakeLists.txt b/lib/builtins/CMakeLists.txt
index c30d9b363..74a6531b0 100644
--- a/lib/builtins/CMakeLists.txt
+++ b/lib/builtins/CMakeLists.txt
@@ -167,6 +167,26 @@ set(GENERIC_SOURCES
   umodti3.c
   emutls.c)
 
+set(GENERIC_TF_SOURCES
+  comparetf2.c
+  extenddftf2.c
+  extendsftf2.c
+  fixtfdi.c
+  fixtfsi.c
+  fixtfti.c
+  fixunstfdi.c
+  fixunstfsi.c
+  fixunstfti.c
+  floatditf.c
+  floatsitf.c
+  floattitf.c
+  floatunditf.c
+  floatunsitf.c
+  floatuntitf.c
+  multc3.c
+  trunctfdf2.c
+  trunctfsf2.c)
+
 option(COMPILER_RT_EXCLUDE_ATOMIC_BUILTIN
   "Skip the atomic builtin (this may be needed if system headers are unavailable)"
   Off)
@@ -404,24 +424,7 @@ elseif(NOT WIN32)
 endif()
 
 set(aarch64_SOURCES
-  comparetf2.c
-  extenddftf2.c
-  extendsftf2.c
-  fixtfdi.c
-  fixtfsi.c
-  fixtfti.c
-  fixunstfdi.c
-  fixunstfsi.c
-  fixunstfti.c
-  floatditf.c
-  floatsitf.c
-  floattitf.c
-  floatunditf.c
-  floatunsitf.c
-  floatuntitf.c
-  multc3.c
-  trunctfdf2.c
-  trunctfsf2.c
+  ${GENERIC_TF_SOURCES}
   ${GENERIC_SOURCES})
 
 set(armhf_SOURCES ${arm_SOURCES})
@@ -437,8 +440,10 @@ set(armv7em_SOURCES ${arm_SOURCES})
 
 set(mips_SOURCES ${GENERIC_SOURCES})
 set(mipsel_SOURCES ${mips_SOURCES})
-set(mips64_SOURCES ${mips_SOURCES})
-set(mips64el_SOURCES ${mips_SOURCES})
+set(mips64_SOURCES ${GENERIC_TF_SOURCES}
+                   ${mips_SOURCES})
+set(mips64el_SOURCES ${GENERIC_TF_SOURCES}
+                     ${mips_SOURCES})
 
 set(wasm32_SOURCES ${GENERIC_SOURCES})
 set(wasm64_SOURCES ${GENERIC_SOURCES})
diff --git a/lib/builtins/int_types.h b/lib/builtins/int_types.h
index 660385ecd..a92238c5b 100644
--- a/lib/builtins/int_types.h
+++ b/lib/builtins/int_types.h
@@ -60,9 +60,7 @@ typedef union
     }s;
 } udwords;
 
-/* MIPS64 issue: PR 20098 */
-#if (defined(__LP64__) || defined(__wasm__)) && \
-    !(defined(__mips__) && defined(__clang__))
+#if (defined(__LP64__) || defined(__wasm__) || defined(__mips64))
 #define CRT_HAS_128BIT
 #endif
 
diff --git a/test/builtins/Unit/divxc3_test.c b/test/builtins/Unit/divxc3_test.c
index d0cdb0169..6517ef124 100644
--- a/test/builtins/Unit/divxc3_test.c
+++ b/test/builtins/Unit/divxc3_test.c
@@ -19,6 +19,7 @@
 #include <complex.h>
 #include <stdio.h>
 
+// UNSUPPORTED: mips
 // REQUIRES: c99-complex
 
 // Returns: the quotient of (a + ib) / (c + id)
diff --git a/test/builtins/Unit/fixunstfti_test.c b/test/builtins/Unit/fixunstfti_test.c
index 019b72049..eaf4b8fb5 100644
--- a/test/builtins/Unit/fixunstfti_test.c
+++ b/test/builtins/Unit/fixunstfti_test.c
@@ -14,6 +14,8 @@
 
 #include <stdio.h>
 
+// UNSUPPORTED: mips
+
 #if __LDBL_MANT_DIG__ == 113
 
 #include "fp_test.h"
diff --git a/test/builtins/Unit/fixunsxfti_test.c b/test/builtins/Unit/fixunsxfti_test.c
index 28a7e9783..0a48a7332 100644
--- a/test/builtins/Unit/fixunsxfti_test.c
+++ b/test/builtins/Unit/fixunsxfti_test.c
@@ -2,6 +2,8 @@
 // XFAIL: aarch64
 // test fails for aarch64 (see pr32260)
 
+// UNSUPPORTED: mips
+
 //===-- fixunsxfti_test.c - Test __fixunsxfti -----------------------------===//
 //
 //                     The LLVM Compiler Infrastructure
diff --git a/test/builtins/Unit/fixxfti_test.c b/test/builtins/Unit/fixxfti_test.c
index c6d42c6e1..e5e15ab78 100644
--- a/test/builtins/Unit/fixxfti_test.c
+++ b/test/builtins/Unit/fixxfti_test.c
@@ -2,6 +2,8 @@
 // XFAIL: aarch64
 // test fails for aarch64 (see pr32260)
 
+// UNSUPPORTED: mips
+
 //===-- fixxfti_test.c - Test __fixxfti -----------------------------------===//
 //
 //                     The LLVM Compiler Infrastructure
diff --git a/test/builtins/Unit/floattixf_test.c b/test/builtins/Unit/floattixf_test.c
index 00644fae1..3de472934 100644
--- a/test/builtins/Unit/floattixf_test.c
+++ b/test/builtins/Unit/floattixf_test.c
@@ -2,6 +2,8 @@
 // XFAIL: aarch64
 // test fails for aarch64 (see pr32260)
 
+// UNSUPPORTED: mips
+
 //===-- floattixf.c - Test __floattixf ------------------------------------===//
 //
 //                     The LLVM Compiler Infrastructure
diff --git a/test/builtins/Unit/floatuntixf_test.c b/test/builtins/Unit/floatuntixf_test.c
index 70ad5f36f..2d71f0f88 100644
--- a/test/builtins/Unit/floatuntixf_test.c
+++ b/test/builtins/Unit/floatuntixf_test.c
@@ -2,6 +2,8 @@
 // XFAIL: aarch64
 // test fails for aarch64 (see pr32260)
 
+// UNSUPPORTED: mips
+
 //===-- floatuntixf.c - Test __floatuntixf --------------------------------===//
 //
 //                     The LLVM Compiler Infrastructure
diff --git a/test/builtins/Unit/mulxc3_test.c b/test/builtins/Unit/mulxc3_test.c
index 3260b7521..c48b0da50 100644
--- a/test/builtins/Unit/mulxc3_test.c
+++ b/test/builtins/Unit/mulxc3_test.c
@@ -19,6 +19,7 @@
 #include <complex.h>
 #include <stdio.h>
 
+// UNSUPPORTED: mips
 // REQUIRES: c99-complex
 
 // Returns: the product of a + ib and c + id