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Revert "Prevent SSA construction from running into endless loops."
[libfirm]
/
ir
/
opt
/
ifconv.c
diff --git
a/ir/opt/ifconv.c
b/ir/opt/ifconv.c
index
c39e1a2
..
d56b723
100644
(file)
--- a/
ir/opt/ifconv.c
+++ b/
ir/opt/ifconv.c
@@
-333,6
+333,8
@@
restart:
mux_true = get_Phi_pred(p, i);
mux_false = get_Phi_pred(p, j);
}
+ if (mux_true == mux_false)
+ continue;
ir_mode *mode = get_irn_mode(mux_true);
if (mode == mode_M
|| !env->allow_ifconv(sel, mux_false, mux_true)) {