[Tarantool-patches] [PATCH luajit 10/19] Cleanup math function compilation and fix inconsistencies.

[Sergey Kaplun]

Hi, folks!
I found that some changes (see <src/lj_asm.c>) are missing, I've updated
the patch and force-pushed the branch.

===================================================================
Cleanup math function compilation and fix inconsistencies.

(cherry picked from commit 5655be4546d9177890c69f0d0accac4773ff0887)

This patch backports the aforementioned patch for mips and ppc, because
those architectures were stripped during the backporting via
71ec8eb232d4dfa8df2cbbae65b799b2ce493979 ("Cleanup math function
compilation and fix inconsistencies."). This applies these missed diffs
to prevent conflict during backporting future patches.

This patch just removes macros, that are no more in use. Also, it
removes `IR_ATAN2` usage, that is not defined.

Sergey Kaplun:
* added the description for the problem

Part of tarantool/tarantool#8825

diff --git a/src/lj_asm.c b/src/lj_asm.c
index 15de7e33..ff68f79b 100644
--- a/src/lj_asm.c
+++ b/src/lj_asm.c
@@ -1705,7 +1705,7 @@ static void asm_ir(ASMState *as, IRIns *ir)
   case IR_NEG: asm_neg(as, ir); break;
 #if LJ_SOFTFP32
   case IR_DIV: case IR_POW: case IR_ABS:
-  case IR_ATAN2: case IR_LDEXP: case IR_FPMATH: case IR_TOBIT:
+  case IR_LDEXP: case IR_FPMATH: case IR_TOBIT:
     lua_assert(0);  /* Unused for LJ_SOFTFP32. */
     break;
 #else
diff --git a/src/lj_asm_mips.h b/src/lj_asm_mips.h
index a26a82cd..c27d8413 100644
--- a/src/lj_asm_mips.h
+++ b/src/lj_asm_mips.h
@@ -1794,7 +1794,6 @@ static void asm_abs(ASMState *as, IRIns *ir)
 }
 #endif
 
-#define asm_atan2(as, ir)	asm_callid(as, ir, IRCALL_atan2)
 #define asm_ldexp(as, ir)	asm_callid(as, ir, IRCALL_ldexp)
 
 static void asm_arithov(ASMState *as, IRIns *ir)
diff --git a/src/lj_asm_ppc.h b/src/lj_asm_ppc.h
index 6cb608f7..6aaed058 100644
--- a/src/lj_asm_ppc.h
+++ b/src/lj_asm_ppc.h
@@ -1390,7 +1390,6 @@ static void asm_neg(ASMState *as, IRIns *ir)
 }
 
 #define asm_abs(as, ir)		asm_fpunary(as, ir, PPCI_FABS)
-#define asm_atan2(as, ir)	asm_callid(as, ir, IRCALL_atan2)
 #define asm_ldexp(as, ir)	asm_callid(as, ir, IRCALL_ldexp)
 
 static void asm_arithov(ASMState *as, IRIns *ir, PPCIns pi)
===================================================================

-- 
Best regards,
Sergey Kaplun