[PATCH 06/31] tcg: Remove TCG_TARGET_STACK_GROWSUP

[Richard Henderson <richard.henderson@linaro.org>]

The hppa host code has been removed since 2013; this
should have been deleted at the same time.

Fixes: 802b5081233a ("tcg-hppa: Remove tcg backend")
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
 tcg/aarch64/tcg-target.h |  1 -
 tcg/arm/tcg-target.h     |  1 -
 tcg/tcg.c                | 32 ++------------------------------
 3 files changed, 2 insertions(+), 32 deletions(-)

diff --git a/tcg/aarch64/tcg-target.h b/tcg/aarch64/tcg-target.h
index 485f685bd2..e145d50fef 100644
--- a/tcg/aarch64/tcg-target.h
+++ b/tcg/aarch64/tcg-target.h
@@ -16,7 +16,6 @@
 #define TCG_TARGET_INSN_UNIT_SIZE  4
 #define TCG_TARGET_TLB_DISPLACEMENT_BITS 24
 #define MAX_CODE_GEN_BUFFER_SIZE  (2 * GiB)
-#undef TCG_TARGET_STACK_GROWSUP
 
 typedef enum {
     TCG_REG_X0, TCG_REG_X1, TCG_REG_X2, TCG_REG_X3,
diff --git a/tcg/arm/tcg-target.h b/tcg/arm/tcg-target.h
index 7e96495392..56c1ac4586 100644
--- a/tcg/arm/tcg-target.h
+++ b/tcg/arm/tcg-target.h
@@ -30,7 +30,6 @@ extern int arm_arch;
 
 #define use_armv7_instructions  (__ARM_ARCH >= 7 || arm_arch >= 7)
 
-#undef TCG_TARGET_STACK_GROWSUP
 #define TCG_TARGET_INSN_UNIT_SIZE 4
 #define TCG_TARGET_TLB_DISPLACEMENT_BITS 16
 #define MAX_CODE_GEN_BUFFER_SIZE  UINT32_MAX
diff --git a/tcg/tcg.c b/tcg/tcg.c
index e9ff3c92e5..6c4f949c85 100644
--- a/tcg/tcg.c
+++ b/tcg/tcg.c
@@ -1551,25 +1551,8 @@ void tcg_gen_callN(void *func, TCGTemp *ret, int nargs, TCGTemp **args)
         }
 
         if (TCG_TARGET_REG_BITS < 64 && is_64bit) {
-            /*
-             * If stack grows up, then we will be placing successive
-             * arguments at lower addresses, which means we need to
-             * reverse the order compared to how we would normally
-             * treat either big or little-endian.  For those arguments
-             * that will wind up in registers, this still works for
-             * HPPA (the only current STACK_GROWSUP target) since the
-             * argument registers are *also* allocated in decreasing
-             * order.  If another such target is added, this logic may
-             * have to get more complicated to differentiate between
-             * stack arguments and register arguments.
-             */
-#if HOST_BIG_ENDIAN != defined(TCG_TARGET_STACK_GROWSUP)
-            op->args[pi++] = temp_arg(args[i] + 1);
-            op->args[pi++] = temp_arg(args[i]);
-#else
-            op->args[pi++] = temp_arg(args[i]);
-            op->args[pi++] = temp_arg(args[i] + 1);
-#endif
+            op->args[pi++] = temp_arg(args[i] + HOST_BIG_ENDIAN);
+            op->args[pi++] = temp_arg(args[i] + !HOST_BIG_ENDIAN);
             real_args += 2;
             continue;
         }
@@ -4166,12 +4149,6 @@ static bool tcg_reg_alloc_dup2(TCGContext *s, const TCGOp *op)
     return true;
 }
 
-#ifdef TCG_TARGET_STACK_GROWSUP
-#define STACK_DIR(x) (-(x))
-#else
-#define STACK_DIR(x) (x)
-#endif
-
 static void tcg_reg_alloc_call(TCGContext *s, TCGOp *op)
 {
     const int nb_oargs = TCGOP_CALLO(op);
@@ -4211,18 +4188,13 @@ static void tcg_reg_alloc_call(TCGContext *s, TCGOp *op)
     stack_offset = TCG_TARGET_CALL_STACK_OFFSET;
     for (i = nb_regs; i < nb_iargs; i++) {
         arg = op->args[nb_oargs + i];
-#ifdef TCG_TARGET_STACK_GROWSUP
-        stack_offset -= sizeof(tcg_target_long);
-#endif
         if (arg != TCG_CALL_DUMMY_ARG) {
             ts = arg_temp(arg);
             temp_load(s, ts, tcg_target_available_regs[ts->type],
                       s->reserved_regs, 0);
             tcg_out_st(s, ts->type, ts->reg, TCG_REG_CALL_STACK, stack_offset);
         }
-#ifndef TCG_TARGET_STACK_GROWSUP
         stack_offset += sizeof(tcg_target_long);
-#endif
     }
     
     /* assign input registers */
-- 
2.34.1