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hw/display/artist: Delay some variables initialization
We want to have an early exit path. Delay some initializations before the variables are used. Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Acked-by: Sven Schnelle <svens@stackframe.org> Message-Id: <20200214001303.12873-4-f4bug@amsat.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
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@ -558,7 +558,7 @@ static void draw_line(ARTISTState *s, int x1, int y1, int x2, int y2,
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bool update_start, int skip_pix, int max_pix)
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{
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struct vram_buffer *buf;
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uint8_t color = artist_get_color(s);
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uint8_t color;
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int dx, dy, t, e, x, y, incy, diago, horiz;
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bool c1;
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uint8_t *p;
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@ -569,10 +569,6 @@ static void draw_line(ARTISTState *s, int x1, int y1, int x2, int y2,
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s->vram_start = (x2 << 16) | y2;
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}
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buf = &s->vram_buffer[ARTIST_BUFFER_AP];
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c1 = false;
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if (x2 > x1) {
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dx = x2 - x1;
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} else {
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@ -583,6 +579,8 @@ static void draw_line(ARTISTState *s, int x1, int y1, int x2, int y2,
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} else {
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dy = y1 - y2;
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}
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c1 = false;
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if (dy > dx) {
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t = y2;
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y2 = x2;
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@ -620,6 +618,8 @@ static void draw_line(ARTISTState *s, int x1, int y1, int x2, int y2,
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}
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x = x1;
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y = y1;
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color = artist_get_color(s);
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buf = &s->vram_buffer[ARTIST_BUFFER_AP];
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do {
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if (c1) {
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