diff --git a/Makefile b/Makefile
index a7f19ce..0beb23d 100644
--- a/Makefile
+++ b/Makefile
@@ -14,7 +14,7 @@ OBJ      = $(COMMOBJ) $(AMD64OBJ) $(ARM64OBJ) $(RV64OBJ)
 SRCALL   = $(OBJ:.o=.c)
 
 CC       = cc
-AR		 = ar
+AR       = ar
 CFLAGS   = -std=c99 -g -Wall -Wextra -Wpedantic
 
 libqbe.a: $(OBJ)
diff --git a/libqbe.c b/libqbe.c
index 66516e6..9f06157 100644
--- a/libqbe.c
+++ b/libqbe.c
@@ -6,16 +6,16 @@
 Target T;
 
 char debug['Z'+1] = {
-	['P'] = 0, /* parsing */
-	['M'] = 0, /* memory optimization */
-	['N'] = 0, /* ssa construction */
-	['C'] = 0, /* copy elimination */
-	['F'] = 0, /* constant folding */
-	['A'] = 0, /* abi lowering */
-	['I'] = 0, /* instruction selection */
-	['L'] = 0, /* liveness */
-	['S'] = 0, /* spilling */
-	['R'] = 0, /* reg. allocation */
+    ['P'] = 0, /* parsing */
+    ['M'] = 0, /* memory optimization */
+    ['N'] = 0, /* ssa construction */
+    ['C'] = 0, /* copy elimination */
+    ['F'] = 0, /* constant folding */
+    ['A'] = 0, /* abi lowering */
+    ['I'] = 0, /* instruction selection */
+    ['L'] = 0, /* liveness */
+    ['S'] = 0, /* spilling */
+    ['R'] = 0, /* reg. allocation */
 };
 
 static FILE *outf;
@@ -24,104 +24,106 @@ static int dbg;
 static void
 data(Dat *d)
 {
-	if (dbg)
-		return;
-	emitdat(d, outf);
-	if (d->type == DEnd) {
-		fputs("/* end data */\n\n", outf);
-		freeall();
-	}
+    if (dbg)
+        return;
+    emitdat(d, outf);
+    if (d->type == DEnd) {
+        fputs("/* end data */\n\n", outf);
+        freeall();
+    }
 }
 
 static void
 func(Fn *fn)
 {
-	uint n;
+    uint n;
 
-	if (dbg)
-		fprintf(stderr, "**** Function %s ****", fn->name);
-	if (debug['P']) {
-		fprintf(stderr, "\n> After parsing:\n");
-		printfn(fn, stderr);
-	}
-	T.abi0(fn);
-	fillrpo(fn);
-	fillpreds(fn);
-	filluse(fn);
-	promote(fn);
-	filluse(fn);
-	ssa(fn);
-	filluse(fn);
-	ssacheck(fn);
-	fillalias(fn);
-	loadopt(fn);
-	filluse(fn);
-	fillalias(fn);
-	coalesce(fn);
-	filluse(fn);
-	ssacheck(fn);
-	copy(fn);
-	filluse(fn);
-	fold(fn);
-	T.abi1(fn);
-	simpl(fn);
-	fillpreds(fn);
-	filluse(fn);
-	T.isel(fn);
-	fillrpo(fn);
-	filllive(fn);
-	fillloop(fn);
-	fillcost(fn);
-	spill(fn);
-	rega(fn);
-	fillrpo(fn);
-	simpljmp(fn);
-	fillpreds(fn);
-	fillrpo(fn);
-	assert(fn->rpo[0] == fn->start);
-	for (n=0;; n++)
-		if (n == fn->nblk-1) {
-			fn->rpo[n]->link = 0;
-			break;
-		} else
-			fn->rpo[n]->link = fn->rpo[n+1];
-	if (!dbg) {
-		T.emitfn(fn, outf);
-		fprintf(outf, "/* end function %s */\n\n", fn->name);
-	} else
-		fprintf(stderr, "\n");
-	freeall();
+    if (dbg)
+        fprintf(stderr, "**** Function %s ****", fn->name);
+    if (debug['P']) {
+        fprintf(stderr, "\n> After parsing:\n");
+        printfn(fn, stderr);
+    }
+    T.abi0(fn);
+    fillrpo(fn);
+    fillpreds(fn);
+    filluse(fn);
+    promote(fn);
+    filluse(fn);
+    ssa(fn);
+    filluse(fn);
+    ssacheck(fn);
+    fillalias(fn);
+    loadopt(fn);
+    filluse(fn);
+    fillalias(fn);
+    coalesce(fn);
+    filluse(fn);
+    ssacheck(fn);
+    copy(fn);
+    filluse(fn);
+    fold(fn);
+    T.abi1(fn);
+    simpl(fn);
+    fillpreds(fn);
+    filluse(fn);
+    T.isel(fn);
+    fillrpo(fn);
+    filllive(fn);
+    fillloop(fn);
+    fillcost(fn);
+    spill(fn);
+    rega(fn);
+    fillrpo(fn);
+    simpljmp(fn);
+    fillpreds(fn);
+    fillrpo(fn);
+    assert(fn->rpo[0] == fn->start);
+    for (n=0;; n++)
+        if (n == fn->nblk-1) {
+            fn->rpo[n]->link = 0;
+            break;
+        } else
+            fn->rpo[n]->link = fn->rpo[n+1];
+    if (!dbg) {
+        T.emitfn(fn, outf);
+        fprintf(outf, "/* end function %s */\n\n", fn->name);
+    } else
+        fprintf(stderr, "\n");
+    freeall();
 }
 
 static void
 dbgfile(char *fn)
 {
-	emitdbgfile(fn, outf);
+    emitdbgfile(fn, outf);
 }
 
 const char* 
 qbe_emit(Target target, const char* ssa)
 {
-	T = target;
-	FILE *inf = fmemopen((void*)ssa, strlen(ssa), "r");
-	outf = tmpfile();
-	char* f = "-";
+    T = target;
+    FILE *inf = tmpfile();
+    fputs(ssa, inf);
+    rewind(inf);
+    outf = tmpfile();
+    char* f = "-";
 
-	parse(inf, f, dbgfile, data, func);
-	fclose(inf);
+    parse(inf, f, dbgfile, data, func);
+    fclose(inf);
 
-	if (!dbg)
-		T.emitfin(outf);
+    if (!dbg)
+        T.emitfin(outf);
 
-	fseek(outf, 0, SEEK_END);
+    fseek(outf, 0, SEEK_END);
     long size = ftell(outf);
     fseek(outf, 0, SEEK_SET);
 
-	char* buf = malloc(size + 1);
-	fread(buf, size, 1, outf);
-	buf[size] = '\0';
+    char* buf = malloc(size + 1);
+    fread(buf, size, 1, outf);
+    buf[size] = '\0';
 
-	fclose(outf);
+    fclose(outf);
 
-	return buf;
+    return buf;
 }