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ghc/ghc-arm64.patch

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commit c29bf984dd20431cd4344e8a5c444d7a5be08389
Author: Colin Watson <cjwatson@debian.org>
Date: Mon Apr 21 22:26:56 2014 -0500
Bug: https://ghc.haskell.org/trac/ghc/ticket/7942
ghc: initial AArch64 patches
Signed-off-by: Austin Seipp <austin@well-typed.com>
Index: ghc-7.8.3/aclocal.m4
===================================================================
--- ghc-7.8.3.orig/aclocal.m4 2014-07-10 10:16:42.533187516 +0200
+++ ghc-7.8.3/aclocal.m4 2014-07-10 10:16:42.529187516 +0200
@@ -197,6 +197,9 @@
GET_ARM_ISA()
test -z "[$]2" || eval "[$]2=\"ArchARM {armISA = \$ARM_ISA, armISAExt = \$ARM_ISA_EXT, armABI = \$ARM_ABI}\""
;;
+ aarch64)
+ test -z "[$]2" || eval "[$]2=ArchARM64"
+ ;;
alpha)
test -z "[$]2" || eval "[$]2=ArchAlpha"
;;
@@ -1862,6 +1865,9 @@
# converts cpu from gnu to ghc naming, and assigns the result to $target_var
AC_DEFUN([GHC_CONVERT_CPU],[
case "$1" in
+ aarch64*)
+ $2="aarch64"
+ ;;
alpha*)
$2="alpha"
;;
Index: ghc-7.8.3/compiler/nativeGen/AsmCodeGen.lhs
===================================================================
--- ghc-7.8.3.orig/compiler/nativeGen/AsmCodeGen.lhs 2014-07-10 10:16:42.533187516 +0200
+++ ghc-7.8.3/compiler/nativeGen/AsmCodeGen.lhs 2014-07-10 10:16:42.529187516 +0200
@@ -166,6 +166,7 @@
ArchPPC -> nCG' (ppcNcgImpl dflags)
ArchSPARC -> nCG' (sparcNcgImpl dflags)
ArchARM {} -> panic "nativeCodeGen: No NCG for ARM"
+ ArchARM64 -> panic "nativeCodeGen: No NCG for ARM64"
ArchPPC_64 -> panic "nativeCodeGen: No NCG for PPC 64"
ArchAlpha -> panic "nativeCodeGen: No NCG for Alpha"
ArchMipseb -> panic "nativeCodeGen: No NCG for mipseb"
Index: ghc-7.8.3/compiler/nativeGen/RegAlloc/Graph/TrivColorable.hs
===================================================================
--- ghc-7.8.3.orig/compiler/nativeGen/RegAlloc/Graph/TrivColorable.hs 2014-07-10 10:16:42.533187516 +0200
+++ ghc-7.8.3/compiler/nativeGen/RegAlloc/Graph/TrivColorable.hs 2014-07-10 10:16:42.529187516 +0200
@@ -113,6 +113,7 @@
ArchSPARC -> 14
ArchPPC_64 -> panic "trivColorable ArchPPC_64"
ArchARM _ _ _ -> panic "trivColorable ArchARM"
+ ArchARM64 -> panic "trivColorable ArchARM64"
ArchAlpha -> panic "trivColorable ArchAlpha"
ArchMipseb -> panic "trivColorable ArchMipseb"
ArchMipsel -> panic "trivColorable ArchMipsel"
@@ -137,6 +138,7 @@
ArchSPARC -> 22
ArchPPC_64 -> panic "trivColorable ArchPPC_64"
ArchARM _ _ _ -> panic "trivColorable ArchARM"
+ ArchARM64 -> panic "trivColorable ArchARM64"
ArchAlpha -> panic "trivColorable ArchAlpha"
ArchMipseb -> panic "trivColorable ArchMipseb"
ArchMipsel -> panic "trivColorable ArchMipsel"
@@ -161,6 +163,7 @@
ArchSPARC -> 11
ArchPPC_64 -> panic "trivColorable ArchPPC_64"
ArchARM _ _ _ -> panic "trivColorable ArchARM"
+ ArchARM64 -> panic "trivColorable ArchARM64"
ArchAlpha -> panic "trivColorable ArchAlpha"
ArchMipseb -> panic "trivColorable ArchMipseb"
ArchMipsel -> panic "trivColorable ArchMipsel"
@@ -185,6 +188,7 @@
ArchSPARC -> 0
ArchPPC_64 -> panic "trivColorable ArchPPC_64"
ArchARM _ _ _ -> panic "trivColorable ArchARM"
+ ArchARM64 -> panic "trivColorable ArchARM64"
ArchAlpha -> panic "trivColorable ArchAlpha"
ArchMipseb -> panic "trivColorable ArchMipseb"
ArchMipsel -> panic "trivColorable ArchMipsel"
Index: ghc-7.8.3/compiler/nativeGen/RegAlloc/Linear/FreeRegs.hs
===================================================================
--- ghc-7.8.3.orig/compiler/nativeGen/RegAlloc/Linear/FreeRegs.hs 2014-07-10 10:16:42.533187516 +0200
+++ ghc-7.8.3/compiler/nativeGen/RegAlloc/Linear/FreeRegs.hs 2014-07-10 10:16:42.529187516 +0200
@@ -74,6 +74,7 @@
ArchPPC -> PPC.Instr.maxSpillSlots dflags
ArchSPARC -> SPARC.Instr.maxSpillSlots dflags
ArchARM _ _ _ -> panic "maxSpillSlots ArchARM"
+ ArchARM64 -> panic "maxSpillSlots ArchARM64"
ArchPPC_64 -> panic "maxSpillSlots ArchPPC_64"
ArchAlpha -> panic "maxSpillSlots ArchAlpha"
ArchMipseb -> panic "maxSpillSlots ArchMipseb"
Index: ghc-7.8.3/compiler/nativeGen/RegAlloc/Linear/Main.hs
===================================================================
--- ghc-7.8.3.orig/compiler/nativeGen/RegAlloc/Linear/Main.hs 2014-07-10 10:16:42.533187516 +0200
+++ ghc-7.8.3/compiler/nativeGen/RegAlloc/Linear/Main.hs 2014-07-10 10:16:42.529187516 +0200
@@ -207,6 +207,7 @@
ArchSPARC -> linearRegAlloc' dflags (frInitFreeRegs platform :: SPARC.FreeRegs) first_id block_live sccs
ArchPPC -> linearRegAlloc' dflags (frInitFreeRegs platform :: PPC.FreeRegs) first_id block_live sccs
ArchARM _ _ _ -> panic "linearRegAlloc ArchARM"
+ ArchARM64 -> panic "linearRegAlloc ArchARM64"
ArchPPC_64 -> panic "linearRegAlloc ArchPPC_64"
ArchAlpha -> panic "linearRegAlloc ArchAlpha"
ArchMipseb -> panic "linearRegAlloc ArchMipseb"
Index: ghc-7.8.3/compiler/nativeGen/TargetReg.hs
===================================================================
--- ghc-7.8.3.orig/compiler/nativeGen/TargetReg.hs 2014-07-10 10:16:42.533187516 +0200
+++ ghc-7.8.3/compiler/nativeGen/TargetReg.hs 2014-07-10 10:16:42.529187516 +0200
@@ -54,6 +54,7 @@
ArchSPARC -> SPARC.virtualRegSqueeze
ArchPPC_64 -> panic "targetVirtualRegSqueeze ArchPPC_64"
ArchARM _ _ _ -> panic "targetVirtualRegSqueeze ArchARM"
+ ArchARM64 -> panic "targetVirtualRegSqueeze ArchARM64"
ArchAlpha -> panic "targetVirtualRegSqueeze ArchAlpha"
ArchMipseb -> panic "targetVirtualRegSqueeze ArchMipseb"
ArchMipsel -> panic "targetVirtualRegSqueeze ArchMipsel"
@@ -70,6 +71,7 @@
ArchSPARC -> SPARC.realRegSqueeze
ArchPPC_64 -> panic "targetRealRegSqueeze ArchPPC_64"
ArchARM _ _ _ -> panic "targetRealRegSqueeze ArchARM"
+ ArchARM64 -> panic "targetRealRegSqueeze ArchARM64"
ArchAlpha -> panic "targetRealRegSqueeze ArchAlpha"
ArchMipseb -> panic "targetRealRegSqueeze ArchMipseb"
ArchMipsel -> panic "targetRealRegSqueeze ArchMipsel"
@@ -85,6 +87,7 @@
ArchSPARC -> SPARC.classOfRealReg
ArchPPC_64 -> panic "targetClassOfRealReg ArchPPC_64"
ArchARM _ _ _ -> panic "targetClassOfRealReg ArchARM"
+ ArchARM64 -> panic "targetClassOfRealReg ArchARM64"
ArchAlpha -> panic "targetClassOfRealReg ArchAlpha"
ArchMipseb -> panic "targetClassOfRealReg ArchMipseb"
ArchMipsel -> panic "targetClassOfRealReg ArchMipsel"
@@ -100,6 +103,7 @@
ArchSPARC -> SPARC.mkVirtualReg
ArchPPC_64 -> panic "targetMkVirtualReg ArchPPC_64"
ArchARM _ _ _ -> panic "targetMkVirtualReg ArchARM"
+ ArchARM64 -> panic "targetMkVirtualReg ArchARM64"
ArchAlpha -> panic "targetMkVirtualReg ArchAlpha"
ArchMipseb -> panic "targetMkVirtualReg ArchMipseb"
ArchMipsel -> panic "targetMkVirtualReg ArchMipsel"
@@ -115,6 +119,7 @@
ArchSPARC -> SPARC.regDotColor
ArchPPC_64 -> panic "targetRegDotColor ArchPPC_64"
ArchARM _ _ _ -> panic "targetRegDotColor ArchARM"
+ ArchARM64 -> panic "targetRegDotColor ArchARM64"
ArchAlpha -> panic "targetRegDotColor ArchAlpha"
ArchMipseb -> panic "targetRegDotColor ArchMipseb"
ArchMipsel -> panic "targetRegDotColor ArchMipsel"
Index: ghc-7.8.3/compiler/utils/Platform.hs
===================================================================
--- ghc-7.8.3.orig/compiler/utils/Platform.hs 2014-07-10 10:16:42.533187516 +0200
+++ ghc-7.8.3/compiler/utils/Platform.hs 2014-07-10 10:16:42.529187516 +0200
@@ -52,6 +52,7 @@
, armISAExt :: [ArmISAExt]
, armABI :: ArmABI
}
+ | ArchARM64
| ArchAlpha
| ArchMipseb
| ArchMipsel
Index: ghc-7.8.3/includes/stg/HaskellMachRegs.h
===================================================================
--- ghc-7.8.3.orig/includes/stg/HaskellMachRegs.h 2014-07-10 10:16:42.533187516 +0200
+++ ghc-7.8.3/includes/stg/HaskellMachRegs.h 2014-07-10 10:16:42.533187516 +0200
@@ -38,6 +38,7 @@
#define MACHREGS_powerpc (powerpc_TARGET_ARCH || powerpc64_TARGET_ARCH || rs6000_TARGET_ARCH)
#define MACHREGS_sparc sparc_TARGET_ARCH
#define MACHREGS_arm arm_TARGET_ARCH
+#define MACHREGS_aarch64 aarch64_TARGET_ARCH
#define MACHREGS_darwin darwin_TARGET_OS
#endif
Index: ghc-7.8.3/includes/stg/MachRegs.h
===================================================================
--- ghc-7.8.3.orig/includes/stg/MachRegs.h 2014-07-10 10:16:42.533187516 +0200
+++ ghc-7.8.3/includes/stg/MachRegs.h 2014-07-10 10:16:42.533187516 +0200
@@ -1,6 +1,6 @@
/* -----------------------------------------------------------------------------
*
- * (c) The GHC Team, 1998-2011
+ * (c) The GHC Team, 1998-2014
*
* Registers used in STG code. Might or might not correspond to
* actual machine registers.
@@ -531,6 +531,61 @@
#define REG_D2 d11
#endif
+/* -----------------------------------------------------------------------------
+ The ARMv8/AArch64 ABI register mapping
+
+ The AArch64 provides 31 64-bit general purpose registers
+ and 32 128-bit SIMD/floating point registers.
+
+ General purpose registers (see Chapter 5.1.1 in ARM IHI 0055B)
+
+ Register | Special | Role in the procedure call standard
+ ---------+---------+------------------------------------
+ SP | | The Stack Pointer
+ r30 | LR | The Link Register
+ r29 | FP | The Frame Pointer
+ r19-r28 | | Callee-saved registers
+ r18 | | The Platform Register, if needed;
+ | | or temporary register
+ r17 | IP1 | The second intra-procedure-call temporary register
+ r16 | IP0 | The first intra-procedure-call scratch register
+ r9-r15 | | Temporary registers
+ r8 | | Indirect result location register
+ r0-r7 | | Parameter/result registers
+
+
+ FPU/SIMD registers
+
+ s/d/q/v0-v7 Argument / result/ scratch registers
+ s/d/q/v8-v15 callee-saved registers (must be preserved across subrutine calls,
+ but only bottom 64-bit value needs to be preserved)
+ s/d/q/v16-v31 temporary registers
+
+ ----------------------------------------------------------------------------- */
+
+#elif MACHREGS_aarch64
+
+#define REG(x) __asm__(#x)
+
+#define REG_Base r19
+#define REG_Sp r20
+#define REG_Hp r21
+#define REG_R1 r22
+#define REG_R2 r23
+#define REG_R3 r24
+#define REG_R4 r25
+#define REG_R5 r26
+#define REG_R6 r27
+#define REG_SpLim r28
+
+#define REG_F1 s8
+#define REG_F2 s9
+#define REG_F3 s10
+#define REG_F4 s11
+
+#define REG_D1 d12
+#define REG_D2 d13
+
#else
#error Cannot find platform to give register info for
Index: ghc-7.8.3/rts/StgCRun.c
===================================================================
--- ghc-7.8.3.orig/rts/StgCRun.c 2014-07-10 10:16:42.533187516 +0200
+++ ghc-7.8.3/rts/StgCRun.c 2014-07-10 10:16:42.533187516 +0200
@@ -748,4 +748,70 @@
}
#endif
+#ifdef aarch64_HOST_ARCH
+
+StgRegTable *
+StgRun(StgFunPtr f, StgRegTable *basereg) {
+ StgRegTable * r;
+ __asm__ volatile (
+ /*
+ * save callee-saves registers on behalf of the STG code.
+ */
+ "stp x19, x20, [sp, #-16]!\n\t"
+ "stp x21, x22, [sp, #-16]!\n\t"
+ "stp x23, x24, [sp, #-16]!\n\t"
+ "stp x25, x26, [sp, #-16]!\n\t"
+ "stp x27, x28, [sp, #-16]!\n\t"
+ "stp ip0, ip1, [sp, #-16]!\n\t"
+ "str lr, [sp, #-8]!\n\t"
+
+ /*
+ * allocate some space for Stg machine's temporary storage.
+ * Note: RESERVER_C_STACK_BYTES has to be a round number here or
+ * the assembler can't assemble it.
+ */
+ "str lr, [sp, %3]"
+ /* "sub sp, sp, %3\n\t" */
+ /*
+ * Set BaseReg
+ */
+ "mov x19, %2\n\t"
+ /*
+ * Jump to function argument.
+ */
+ "bx %1\n\t"
+
+ ".globl " STG_RETURN "\n\t"
+ ".type " STG_RETURN ", %%function\n"
+ STG_RETURN ":\n\t"
+ /*
+ * Free the space we allocated
+ */
+ "ldr lr, [sp], %3\n\t"
+ /* "add sp, sp, %3\n\t" */
+ /*
+ * Return the new register table, taking it from Stg's R1 (ARM64's R22).
+ */
+ "mov %0, x22\n\t"
+ /*
+ * restore callee-saves registers.
+ */
+ "ldr lr, [sp], #8\n\t"
+ "ldp ip0, ip1, [sp], #16\n\t"
+ "ldp x27, x28, [sp], #16\n\t"
+ "ldp x25, x26, [sp], #16\n\t"
+ "ldp x23, x24, [sp], #16\n\t"
+ "ldp x21, x22, [sp], #16\n\t"
+ "ldp x19, x20, [sp], #16\n\t"
+
+ : "=r" (r)
+ : "r" (f), "r" (basereg), "i" (RESERVED_C_STACK_BYTES)
+ : "%x19", "%x20", "%x21", "%x22", "%x23", "%x24", "%x25", "%x26", "%x27", "%x28",
+ "%ip0", "%ip1", "%lr"
+ );
+ return r;
+}
+
+#endif
+
#endif /* !USE_MINIINTERPRETER */
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