Hexagon: Move runtime libcall configuration to tablegen

[arsenm]

No description provided.

[arsenm]

Warning

This pull request is not mergeable via GitHub because a downstack PR is open. Once all requirements are satisfied, merge this PR as a stack on Graphite.
Learn more

• RuntimeLibcalls: Avoid adding f80 calls to default set #147658
• 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 👈 (View in Graphite)
• 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

This stack of pull requests is managed by Graphite. Learn more about stacking.

[llvmbot]

@llvm/pr-subscribers-llvm-ir
@llvm/pr-subscribers-llvm-selectiondag

@llvm/pr-subscribers-backend-hexagon

Author: Matt Arsenault (arsenm)

Changes

---

Full diff: https://github.com/llvm/llvm-project/pull/147482.diff

2 Files Affected:

• (modified) llvm/include/llvm/IR/RuntimeLibcalls.td (+11)
• (modified) llvm/lib/IR/RuntimeLibcalls.cpp (-35)

diff --git a/llvm/include/llvm/IR/RuntimeLibcalls.td b/llvm/include/llvm/IR/RuntimeLibcalls.td
index 2099aae877861..e40e71f13af42 100644
--- a/llvm/include/llvm/IR/RuntimeLibcalls.td
+++ b/llvm/include/llvm/IR/RuntimeLibcalls.td
@@ -1414,6 +1414,7 @@ def AVRSystemLibrary
 // Hexagon Runtime Libcalls
 //===----------------------------------------------------------------------===//
 
+defset list<RuntimeLibcallImpl> HexagonLibcalls = {
 def __hexagon_divsi3 : RuntimeLibcallImpl<SDIV_I32>;
 def __hexagon_divdi3 : RuntimeLibcallImpl<SDIV_I64>;
 def __hexagon_udivsi3 : RuntimeLibcallImpl<UDIV_I32>;
@@ -1446,6 +1447,16 @@ def __hexagon_fast2_sqrtdf2 : RuntimeLibcallImpl<FAST_SQRT_F64>;
 
 def __hexagon_memcpy_likely_aligned_min32bytes_mult8bytes
     : RuntimeLibcallImpl<HEXAGON_MEMCPY_LIKELY_ALIGNED_MIN32BYTES_MULT8BYTES>;
+}
+
+def isHexagon : RuntimeLibcallPredicate<"TT.getArch() == Triple::hexagon">;
+
+def HexagonSystemLibrary
+    : SystemRuntimeLibrary<isHexagon,
+    (add (sub DefaultLibcallImpls32,
+    __adddf3, __divsf3, __udivsi3, __udivdi3,
+    __umoddi3, __divdf3, __muldf3, __divsi3, __subdf3, sqrtf,
+    __divdi3, __umodsi3, __moddi3, __modsi3), HexagonLibcalls)>;
 
 //===----------------------------------------------------------------------===//
 // Lanai Runtime Libcalls
diff --git a/llvm/lib/IR/RuntimeLibcalls.cpp b/llvm/lib/IR/RuntimeLibcalls.cpp
index b60b065c80346..179cc0b1ef58d 100644
--- a/llvm/lib/IR/RuntimeLibcalls.cpp
+++ b/llvm/lib/IR/RuntimeLibcalls.cpp
@@ -254,41 +254,6 @@ void RuntimeLibcallsInfo::initLibcalls(const Triple &TT,
     setLibcallImpl(RTLIB::MULO_I128, RTLIB::Unsupported);
   }
 
-  if (TT.getArch() == Triple::ArchType::hexagon) {
-    setLibcallImpl(RTLIB::SDIV_I32, RTLIB::__hexagon_divsi3);
-    setLibcallImpl(RTLIB::SDIV_I64, RTLIB::__hexagon_divdi3);
-    setLibcallImpl(RTLIB::UDIV_I32, RTLIB::__hexagon_udivsi3);
-    setLibcallImpl(RTLIB::UDIV_I64, RTLIB::__hexagon_udivdi3);
-    setLibcallImpl(RTLIB::SREM_I32, RTLIB::__hexagon_modsi3);
-    setLibcallImpl(RTLIB::SREM_I64, RTLIB::__hexagon_moddi3);
-    setLibcallImpl(RTLIB::UREM_I32, RTLIB::__hexagon_umodsi3);
-    setLibcallImpl(RTLIB::UREM_I64, RTLIB::__hexagon_umoddi3);
-
-    // Prefix is: nothing  for "slow-math",
-    //            "fast2_" for V5+ fast-math double-precision
-    // (actually, keep fast-math and fast-math2 separate for now)
-
-    setLibcallImpl(RTLIB::FAST_ADD_F64, RTLIB::__hexagon_fast_adddf3);
-    setLibcallImpl(RTLIB::FAST_SUB_F64, RTLIB::__hexagon_fast_subdf3);
-    setLibcallImpl(RTLIB::FAST_MUL_F64, RTLIB::__hexagon_fast_muldf3);
-    setLibcallImpl(RTLIB::FAST_DIV_F64, RTLIB::__hexagon_fast_divdf3);
-    setLibcallImpl(RTLIB::FAST_DIV_F32, RTLIB::__hexagon_fast_divsf3);
-    setLibcallImpl(RTLIB::FAST_SQRT_F32, RTLIB::__hexagon_fast2_sqrtf);
-    // This is the only fast library function for sqrtd.
-    setLibcallImpl(RTLIB::FAST_SQRT_F64, RTLIB::__hexagon_fast2_sqrtdf2);
-
-    setLibcallImpl(RTLIB::ADD_F64, RTLIB::__hexagon_adddf3);
-    setLibcallImpl(RTLIB::SUB_F64, RTLIB::__hexagon_subdf3);
-    setLibcallImpl(RTLIB::MUL_F64, RTLIB::__hexagon_muldf3);
-    setLibcallImpl(RTLIB::DIV_F64, RTLIB::__hexagon_divdf3);
-    setLibcallImpl(RTLIB::DIV_F32, RTLIB::__hexagon_divsf3);
-    setLibcallImpl(RTLIB::SQRT_F32, RTLIB::__hexagon_sqrtf);
-
-    setLibcallImpl(
-        RTLIB::HEXAGON_MEMCPY_LIKELY_ALIGNED_MIN32BYTES_MULT8BYTES,
-        RTLIB::__hexagon_memcpy_likely_aligned_min32bytes_mult8bytes);
-  }
-
   if (TT.getArch() == Triple::ArchType::msp430) {
     setLibcallImplCallingConv(RTLIB::__mspabi_mpyll,
                               CallingConv::MSP430_BUILTIN);

[RKSimon]

LGTM