Add l suffix to yoink nop
parent
de09bec215
commit
12065100e1
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@ -784,7 +784,7 @@ typedef uint64_t uintmax_t;
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} while (0)
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#define STATIC_YOINK(SYMBOLSTR) \
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asm(".pushsection .yoink\n\tnop\t\"" SYMBOLSTR "\"\n\t.popsection")
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asm(".pushsection .yoink\n\tnopl\t\"" SYMBOLSTR "\"\n\t.popsection")
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#if !defined(IM_FEELING_NAUGHTY) && !defined(__STRICT_ANSI__)
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#define STATIC_YOINK_SOURCE(PATH) STATIC_YOINK(PATH)
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@ -22,7 +22,9 @@
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#include "libc/fmt/conv.h"
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#include "libc/log/check.h"
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#include "libc/log/log.h"
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#include "libc/macros.h"
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#include "libc/mem/mem.h"
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#include "libc/nexgen32e/bsr.h"
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#include "libc/runtime/runtime.h"
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#include "libc/stdio/stdio.h"
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#include "libc/str/str.h"
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@ -135,8 +137,6 @@
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#define APPEND(L) L.p = realloc(L.p, ++L.n * sizeof(*L.p))
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#define IS(P, N, S) (N == sizeof(S) - 1 && !strncasecmp(P, S, sizeof(S) - 1))
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#define BSR(I) (__builtin_clz(I) ^ 31)
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#define ROUNDUP(X, K) (((X) + (K)-1) & -(K))
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#define MAX(X, Y) ((Y) < (X) ? (X) : (Y))
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#define LOAD128BE(S) ((unsigned __int128)LOAD64BE(S) << 64 | LOAD64BE((S) + 8))
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#define LOAD64BE(S) \
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@ -148,8 +148,6 @@
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(unsigned long)((unsigned char *)(S))[5] << 020 | \
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(unsigned long)((unsigned char *)(S))[6] << 010 | \
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(unsigned long)((unsigned char *)(S))[7] << 000)
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#define ARRAYLEN(A) \
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((sizeof(A) / sizeof(*(A))) / ((unsigned)!(sizeof(A) % sizeof(*(A)))))
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struct As {
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int i; // things
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@ -2011,7 +2009,7 @@ static int ParseModrm(struct As *a, int *disp) {
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modrm |= reg & 0xff00; // rex
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if (((reg & 070) >> 3) == 2) modrm |= HASASZ; // asz
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if (!IsPunct(a, a->i, ')')) {
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modrm |= (BSR(GetInt(a)) & 3) << 6;
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modrm |= (bsr(GetInt(a)) & 3) << 6;
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}
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} else {
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modrm |= 4 << 3; // puttin' on the riz
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@ -2118,23 +2116,23 @@ static void OnMov(struct As *a, struct Slice s) {
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switch ((reg & 070) >> 3) {
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case 0:
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EmitRex(a, reg);
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EmitByte(a, 0xb0 + (reg & 7));
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EmitByte(a, 0xB0 + (reg & 7));
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EmitExpr(a, imm, R_X86_64_8, EmitByte);
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break;
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case 1:
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EmitRex(a, reg);
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EmitByte(a, OSZ);
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EmitByte(a, 0xb8 + (reg & 7));
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EmitByte(a, 0xB8 + (reg & 7));
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EmitExpr(a, imm, R_X86_64_16, EmitWord);
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break;
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case 2:
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EmitRex(a, reg);
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EmitByte(a, 0xb8 + (reg & 7));
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EmitByte(a, 0xB8 + (reg & 7));
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EmitExpr(a, imm, R_X86_64_32, EmitLong);
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break;
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case 3:
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EmitRex(a, reg);
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EmitByte(a, 0xb8 + (reg & 7)); // suboptimal
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EmitByte(a, 0xB8 + (reg & 7)); // suboptimal
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EmitExpr(a, imm, R_X86_64_64, EmitQuad);
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break;
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default:
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@ -2145,26 +2143,26 @@ static void OnMov(struct As *a, struct Slice s) {
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switch (GetOpSize(a, s, modrm, 1)) {
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case 0:
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EmitRex(a, modrm);
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EmitByte(a, 0xc6);
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EmitByte(a, 0xC6);
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EmitModrm(a, 0, modrm, disp);
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EmitExpr(a, imm, R_X86_64_8, EmitByte);
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break;
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case 1:
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EmitByte(a, OSZ);
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EmitRex(a, modrm);
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EmitByte(a, 0xc7);
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EmitByte(a, 0xC7);
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EmitModrm(a, 0, modrm, disp);
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EmitExpr(a, imm, R_X86_64_16, EmitWord);
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break;
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case 2:
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EmitRex(a, modrm);
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EmitByte(a, 0xc7);
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EmitByte(a, 0xC7);
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EmitModrm(a, 0, modrm, disp);
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EmitExpr(a, imm, R_X86_64_32, EmitLong);
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break;
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case 3:
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EmitRex(a, modrm | REXW << 8);
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EmitByte(a, 0xc7); // suboptimal
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EmitByte(a, 0xC7); // suboptimal
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EmitModrm(a, 0, modrm, disp);
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EmitExpr(a, imm, R_X86_64_32, EmitLong);
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break;
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@ -3,7 +3,7 @@
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float g40 = 1.5;
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double g41 = 0.0 ? 55 : (0, 1 + 1 * 5.0 / 2 * (double)2 * (int)2.0);
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int main() {
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int main(int argc, char *argv[]) {
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ASSERT(10, ({
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enum { ten = 1 + 2 + 3 + 4 };
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ten;
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@ -242,10 +242,14 @@ void add_type(Node *node) {
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node->ty = node->lhs->ty;
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} else {
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#endif
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if (!node->lhs->ty->base)
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if (!node->lhs->ty->base) {
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error_tok(node->tok, "invalid pointer dereference");
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if (node->lhs->ty->base->kind == TY_VOID)
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}
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if (node->lhs->ty->base->kind == TY_VOID) {
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/* TODO(jart): Does standard permit this? */
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/* https://lkml.org/lkml/2018/3/20/845 */
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error_tok(node->tok, "dereferencing a void pointer");
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}
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node->ty = node->lhs->ty->base;
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#if 0
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}
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