From fb3623b235f5caa9d76e656b1e5eda797c7c73eb Mon Sep 17 00:00:00 2001 From: Keith Whitwell Date: Thu, 1 May 2008 20:41:03 +0100 Subject: rtasm: fix labels after (not so) recent change to allow dynamic fn growth Using char * for labels doesn't work if you realloc the function during assembly and free the old storage... --- src/gallium/auxiliary/rtasm/rtasm_x86sse.c | 49 +++++++++---------------- src/gallium/auxiliary/rtasm/rtasm_x86sse.h | 14 +++---- src/gallium/auxiliary/tgsi/exec/tgsi_sse2.c | 4 +- src/gallium/auxiliary/translate/translate_sse.c | 2 +- 4 files changed, 28 insertions(+), 41 deletions(-) (limited to 'src') diff --git a/src/gallium/auxiliary/rtasm/rtasm_x86sse.c b/src/gallium/auxiliary/rtasm/rtasm_x86sse.c index 40f6f973d6..e69251f072 100644 --- a/src/gallium/auxiliary/rtasm/rtasm_x86sse.c +++ b/src/gallium/auxiliary/rtasm/rtasm_x86sse.c @@ -347,9 +347,9 @@ struct x86_reg x86_get_base_reg( struct x86_reg reg ) return x86_make_reg( reg.file, reg.idx ); } -unsigned char *x86_get_label( struct x86_function *p ) +int x86_get_label( struct x86_function *p ) { - return p->csr; + return p->csr - p->store; } @@ -361,17 +361,22 @@ unsigned char *x86_get_label( struct x86_function *p ) void x86_jcc( struct x86_function *p, enum x86_cc cc, - unsigned char *label ) + int label ) { - intptr_t offset = pointer_to_intptr( label ) - (pointer_to_intptr( x86_get_label(p) ) + 2); + int offset = label - (x86_get_label(p) + 2); DUMP_I(cc); + if (offset < 0) { + int amt = p->csr - p->store; + assert(amt > -offset); + } + if (offset <= 127 && offset >= -128) { emit_1ub(p, 0x70 + cc); emit_1b(p, (char) offset); } else { - offset = pointer_to_intptr( label ) - (pointer_to_intptr( x86_get_label(p) ) + 6); + offset = label - (x86_get_label(p) + 6); emit_2ub(p, 0x0f, 0x80 + cc); emit_1i(p, offset); } @@ -379,8 +384,8 @@ void x86_jcc( struct x86_function *p, /* Always use a 32bit offset for forward jumps: */ -unsigned char *x86_jcc_forward( struct x86_function *p, - enum x86_cc cc ) +int x86_jcc_forward( struct x86_function *p, + enum x86_cc cc ) { DUMP_I(cc); emit_2ub(p, 0x0f, 0x80 + cc); @@ -388,7 +393,7 @@ unsigned char *x86_jcc_forward( struct x86_function *p, return x86_get_label(p); } -unsigned char *x86_jmp_forward( struct x86_function *p) +int x86_jmp_forward( struct x86_function *p) { DUMP(); emit_1ub(p, 0xe9); @@ -396,7 +401,7 @@ unsigned char *x86_jmp_forward( struct x86_function *p) return x86_get_label(p); } -unsigned char *x86_call_forward( struct x86_function *p) +int x86_call_forward( struct x86_function *p) { DUMP(); @@ -408,42 +413,24 @@ unsigned char *x86_call_forward( struct x86_function *p) /* Fixup offset from forward jump: */ void x86_fixup_fwd_jump( struct x86_function *p, - unsigned char *fixup ) + int fixup ) { - *(int *)(fixup - 4) = pointer_to_intptr( x86_get_label(p) ) - pointer_to_intptr( fixup ); + *(int *)(p->store + fixup - 4) = x86_get_label(p) - fixup; } -void x86_jmp( struct x86_function *p, unsigned char *label) +void x86_jmp( struct x86_function *p, int label) { DUMP_I( label ); emit_1ub(p, 0xe9); - emit_1i(p, pointer_to_intptr( label ) - pointer_to_intptr( x86_get_label(p) ) - 4); -} - -#if 0 -static unsigned char *cptr( void (*label)() ) -{ - return (unsigned char *) label; + emit_1i(p, label - x86_get_label(p) - 4); } -/* This doesn't work once we start reallocating & copying the - * generated code on buffer fills, because the call is relative to the - * current pc. - */ -void x86_call( struct x86_function *p, void (*label)()) -{ - DUMP_I( label ); - emit_1ub(p, 0xe8); - emit_1i(p, cptr(label) - x86_get_label(p) - 4); -} -#else void x86_call( struct x86_function *p, struct x86_reg reg) { DUMP_R( reg ); emit_1ub(p, 0xff); emit_modrm_noreg(p, 2, reg); } -#endif /* michal: diff --git a/src/gallium/auxiliary/rtasm/rtasm_x86sse.h b/src/gallium/auxiliary/rtasm/rtasm_x86sse.h index ad79b1facf..eacaeeaf6f 100644 --- a/src/gallium/auxiliary/rtasm/rtasm_x86sse.h +++ b/src/gallium/auxiliary/rtasm/rtasm_x86sse.h @@ -124,23 +124,23 @@ struct x86_reg x86_get_base_reg( struct x86_reg reg ); /* Labels, jumps and fixup: */ -unsigned char *x86_get_label( struct x86_function *p ); +int x86_get_label( struct x86_function *p ); void x86_jcc( struct x86_function *p, enum x86_cc cc, - unsigned char *label ); + int label ); -unsigned char *x86_jcc_forward( struct x86_function *p, +int x86_jcc_forward( struct x86_function *p, enum x86_cc cc ); -unsigned char *x86_jmp_forward( struct x86_function *p); +int x86_jmp_forward( struct x86_function *p); -unsigned char *x86_call_forward( struct x86_function *p); +int x86_call_forward( struct x86_function *p); void x86_fixup_fwd_jump( struct x86_function *p, - unsigned char *fixup ); + int fixup ); -void x86_jmp( struct x86_function *p, unsigned char *label ); +void x86_jmp( struct x86_function *p, int label ); /* void x86_call( struct x86_function *p, void (*label)() ); */ void x86_call( struct x86_function *p, struct x86_reg reg); diff --git a/src/gallium/auxiliary/tgsi/exec/tgsi_sse2.c b/src/gallium/auxiliary/tgsi/exec/tgsi_sse2.c index 45453c34ce..07db3292b4 100755 --- a/src/gallium/auxiliary/tgsi/exec/tgsi_sse2.c +++ b/src/gallium/auxiliary/tgsi/exec/tgsi_sse2.c @@ -2021,7 +2021,7 @@ static void aos_to_soa( struct x86_function *func, uint aos, uint soa, uint num, struct x86_reg aos_input; struct x86_reg num_inputs; struct x86_reg temp; - unsigned char *inner_loop; + int inner_loop; soa_input = x86_make_reg( file_REG32, reg_AX ); aos_input = get_temp_base(); /* BX or SI */ @@ -2083,7 +2083,7 @@ static void soa_to_aos( struct x86_function *func, uint aos, uint soa, uint num, struct x86_reg aos_output; struct x86_reg num_outputs; struct x86_reg temp; - unsigned char *inner_loop; + int inner_loop; soa_output = x86_make_reg( file_REG32, reg_AX ); aos_output = get_temp_base(); /* BX or SI */ diff --git a/src/gallium/auxiliary/translate/translate_sse.c b/src/gallium/auxiliary/translate/translate_sse.c index f590d48b78..a54ac5a82f 100644 --- a/src/gallium/auxiliary/translate/translate_sse.c +++ b/src/gallium/auxiliary/translate/translate_sse.c @@ -404,7 +404,7 @@ static boolean build_vertex_emit( struct translate_sse *p, struct x86_reg srcEAX = x86_make_reg(file_REG32, reg_CX); struct x86_reg countEBP = x86_make_reg(file_REG32, reg_BP); struct x86_reg translateESI = x86_make_reg(file_REG32, reg_SI); - uint8_t *fixup, *label; + int fixup, label; unsigned j; p->func = func; -- cgit v1.2.3