RuntimeLibcalls: Avoid adding f80 calls to default set

[arsenm]

Starts adding a stub X86 configuration which doesn't attempt
the system specific pieces yet. This is mostly to have a point
to add back in the f80 calls so they can be removed from every
other target.

[arsenm]

Warning

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• RuntimeLibcalls: Avoid adding f80 calls to default set #147658 👈 (View in Graphite)
• RuntimeLibcalls: Avoid adding ppcf128 calls to non-ppc targets #147656
• RISCV: Start moving runtime libcall config to tablegen #147652
• RuntimeLibcalls: Stop using defset for default calls #147651
• Hexagon: Move runtime libcall configuration to tablegen #147482
• DAG: Use fast variants of fast math libcalls #147481
• ARM: Start moving runtime libcalls into tablegen #146084
• ARM: Unconditionally set eabi libcall calling convs in RuntimeLibcalls #146083
• RuntimeLibcalls: Remove table of soft float compare cond codes #146082
• MSP430: Move libcall CC setting to RuntimeLibcallsInfo #146081
• Lanai: Use TableGen to set libcall calling conventions #146080
• TableGen: Handle setting runtime libcall calling conventions #144980
• RuntimeLibcalls: Associate calling convention with libcall impls #144979
• TableGen: Allow defining sets of runtime libraries #144978
• AArch64: Add libcall impl declarations for __arm_sc* memory functions #144977
• XCore: Declare libcalls used for align 4 memcpy #144976
• Hexagon: Add libcall declarations for special memcpy #144975
• ARM: Add runtime libcall definitions for aebi memory functions #144974
• TableGen: Generate enum for runtime libcall implementations #144973
• TableGen: Add runtime libcall backend #144972
• PowerPC: Stop reporting memcpy as an alias of memmove on AIX #143836
• main

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[llvmbot]

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@llvm/pr-subscribers-backend-hexagon

Author: Matt Arsenault (arsenm)

Changes

Starts adding a stub X86 configuration which doesn't attempt
the system specific pieces yet. This is mostly to have a point
to add back in the f80 calls so they can be removed from every
other target.

---

Full diff: https://github.com/llvm/llvm-project/pull/147658.diff

1 Files Affected:

• (modified) llvm/include/llvm/IR/RuntimeLibcalls.td (+21)

diff --git a/llvm/include/llvm/IR/RuntimeLibcalls.td b/llvm/include/llvm/IR/RuntimeLibcalls.td
index c9eda9110a9ef..c9058d3e38c04 100644
--- a/llvm/include/llvm/IR/RuntimeLibcalls.td
+++ b/llvm/include/llvm/IR/RuntimeLibcalls.td
@@ -1012,6 +1012,10 @@ defvar CompilerRTOnlyInt128Libcalls = [
   __mulodi4
 ];
 
+defvar DefaultRuntimeLibcallImpls_f80 =
+    !filter(entry, AllDefaultRuntimeLibcallImpls,
+            !match(!cast<string>(entry.Provides), "F80"));
+
 defvar DefaultRuntimeLibcallImpls_ppcf128 =
     !filter(entry, AllDefaultRuntimeLibcallImpls,
             !match(!cast<string>(entry.Provides), "PPCF128"));
@@ -1021,10 +1025,12 @@ defvar DefaultRuntimeLibcallImpls_f128 =
             !match(!cast<string>(entry.Provides), "_F128"));
 
 defvar DefaultRuntimeLibcallImpls =
+!listremove(
   !listremove(
     !listremove(
         !listremove(AllDefaultRuntimeLibcallImpls, Int128RTLibcalls),
                     CompilerRTOnlyInt128Libcalls),
+                    DefaultRuntimeLibcallImpls_f80),
                     DefaultRuntimeLibcallImpls_ppcf128);
 
 defvar DefaultRuntimeLibcallImpls_atomic =
@@ -1929,6 +1935,21 @@ def _allrem : RuntimeLibcallImpl<SREM_I64>;
 def _aullrem : RuntimeLibcallImpl<UREM_I64>;
 def _allmul : RuntimeLibcallImpl<MUL_I64>;
 
+//===----------------------------------------------------------------------===//
+// X86 Runtime Libcalls
+//===----------------------------------------------------------------------===//
+
+def isX86_32 : RuntimeLibcallPredicate<"TT.getArch() == Triple::x86">;
+def isX86_64 : RuntimeLibcallPredicate<"TT.getArch() == Triple::x86_64">;
+
+def X86_32SystemLibrary
+    : SystemRuntimeLibrary<isX86_32,
+      (add DefaultLibcallImpls32, DefaultRuntimeLibcallImpls_f80)>;
+
+def X86_64SystemLibrary
+    : SystemRuntimeLibrary<isX86_64,
+      (add DefaultLibcallImpls64, DefaultRuntimeLibcallImpls_f80)>;
+
 //===----------------------------------------------------------------------===//
 // XCore Runtime Libcalls
 //===----------------------------------------------------------------------===//