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author | Luc Van Oostenryck <luc.vanoostenryck@gmail.com> | 2021-03-05 17:36:37 +0100 |
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committer | Luc Van Oostenryck <luc.vanoostenryck@gmail.com> | 2021-03-05 17:36:37 +0100 |
commit | e0f904856b3d665a84b4342b79967b97a3739545 (patch) | |
tree | 6bcf9d5aaed252c9416c867e508942d54b97bb65 | |
parent | 41222364c4a6ba9e515df5eee96ae6262735fdc6 (diff) | |
parent | 778de2bf52a2bed588d1653aaebe2cbd25f80eac (diff) | |
download | sparse-e0f904856b3d665a84b4342b79967b97a3739545.tar.gz |
Merge branch 'slice'
* slice: small reorg of OP_SLICE in preparation for some incoming changes
-rw-r--r-- | Documentation/IR.rst | 2 | ||||
-rw-r--r-- | evaluate.c | 1 | ||||
-rw-r--r-- | expression.h | 2 | ||||
-rw-r--r-- | linearize.c | 6 | ||||
-rw-r--r-- | linearize.h | 5 | ||||
-rw-r--r-- | liveness.c | 7 | ||||
-rw-r--r-- | show-parse.c | 2 |
7 files changed, 9 insertions, 16 deletions
diff --git a/Documentation/IR.rst b/Documentation/IR.rst index 38df84ff..e1613402 100644 --- a/Documentation/IR.rst +++ b/Documentation/IR.rst @@ -408,7 +408,7 @@ Others Extract a "slice" from an aggregate. * .base: (pseudo_t) aggregate (alias .src) - * .from, .len: offet & size of the "slice" within the aggregate + * .from: offset of the "slice" within the aggregate * .target: result * .type: type of .target @@ -2170,7 +2170,6 @@ static struct symbol *evaluate_member_dereference(struct expression *expr) } expr->r_bitpos += bytes_to_bits(offset); expr->type = EXPR_SLICE; - expr->r_nrbits = member->bit_size; expr->r_bitpos += member->bit_offset; expr->ctype = member; return member; diff --git a/expression.h b/expression.h index 3e9e9d85..f733c076 100644 --- a/expression.h +++ b/expression.h @@ -206,7 +206,7 @@ struct expression { // EXPR_SLICE struct /* slice */ { struct expression *base; - unsigned r_bitpos, r_nrbits; + unsigned r_bitpos; }; // EXPR_CAST, EXPR_FORCE_CAST, EXPR_IMPLIED_CAST, // EXPR_SIZEOF, EXPR_ALIGNOF and EXPR_PTRSIZEOF diff --git a/linearize.c b/linearize.c index 0c9b0e59..b06c0625 100644 --- a/linearize.c +++ b/linearize.c @@ -470,7 +470,7 @@ const char *show_instruction(struct instruction *insn) break; case OP_SLICE: - buf += sprintf(buf, "%s <- %s, %d, %d", show_pseudo(insn->target), show_pseudo(insn->base), insn->from, insn->len); + buf += sprintf(buf, "%s <- (%d) %s, %d", show_pseudo(insn->target), type_size(insn->orig_type), show_pseudo(insn->src), insn->from); break; case OP_NOT: case OP_NEG: @@ -1239,8 +1239,8 @@ static pseudo_t linearize_slice(struct entrypoint *ep, struct expression *expr) insn->target = new; insn->from = expr->r_bitpos; - insn->len = expr->r_nrbits; - use_pseudo(insn, pre, &insn->base); + insn->orig_type = expr->base->ctype; + use_pseudo(insn, pre, &insn->src); add_one_insn(ep, insn); return new; } diff --git a/linearize.h b/linearize.h index 01ee656c..17e8c38a 100644 --- a/linearize.h +++ b/linearize.h @@ -113,6 +113,7 @@ struct instruction { }; struct /* unops */ { pseudo_t src; + unsigned from; /* slice */ struct symbol *orig_type; /* casts */ }; struct /* memops */ { @@ -127,10 +128,6 @@ struct instruction { pseudo_t _src1, _src2; // alias .src[12] struct symbol *itype; // input operands' type }; - struct /* slice */ { - pseudo_t base; - unsigned from, len; - }; struct /* setval */ { struct expression *val; }; @@ -76,7 +76,8 @@ static void track_instruction_usage(struct basic_block *bb, struct instruction * /* Uni */ case OP_UNOP ... OP_UNOP_END: case OP_SYMADDR: - USES(src1); DEFINES(target); + case OP_SLICE: + USES(src); DEFINES(target); break; case OP_SEL: @@ -121,10 +122,6 @@ static void track_instruction_usage(struct basic_block *bb, struct instruction * } END_FOR_EACH_PTR(pseudo); break; - case OP_SLICE: - USES(base); DEFINES(target); - break; - case OP_ASM: asm_liveness(bb, insn, def, use); break; diff --git a/show-parse.c b/show-parse.c index 3ab8ec8f..e2fc18bb 100644 --- a/show-parse.c +++ b/show-parse.c @@ -819,7 +819,7 @@ static int show_slice(struct expression *expr) { int target = show_expression(expr->base); int new = new_pseudo(); - printf("\tslice.%d\t\tv%d,v%d,%d\n", expr->r_nrbits, target, new, expr->r_bitpos); + printf("\tslice.%d\t\tv%d,v%d,%d\n", expr->ctype->bit_size, target, new, expr->r_bitpos); return new; } |