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riscv-gcc-1
Commit 453331a3 by Richard Kenner
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(maybe_eliminate_biv_1): Ignore GIV if it isn't always computed. 

From-SVN: r6616
parent f67ff5de
Showing with 5 additions and 5 deletions
gcc/loop.c
......@@ -5971,7 +5971,7 @@ maybe_eliminate_biv_1 (x, insn, bl, eliminate_p, where)
for (v = bl->giv; v; v = v->next_iv)
if (CONSTANT_P (v->mult_val) && v->mult_val != const0_rtx
&& v->add_val == const0_rtx
&& ! v->ignore && ! v->maybe_dead
&& ! v->ignore && ! v->maybe_dead && v->always_computable
&& v->mode == mode)
{
if (! eliminate_p)
......@@ -5996,7 +5996,7 @@ maybe_eliminate_biv_1 (x, insn, bl, eliminate_p, where)
for (v = bl->giv; v; v = v->next_iv)
if (CONSTANT_P (v->mult_val) && v->mult_val != const0_rtx
&& ! v->ignore && ! v->maybe_dead
&& ! v->ignore && ! v->maybe_dead && v->always_computable
&& v->mode == mode)
{
if (! eliminate_p)
......@@ -6053,7 +6053,7 @@ maybe_eliminate_biv_1 (x, insn, bl, eliminate_p, where)
for (v = bl->giv; v; v = v->next_iv)
if (CONSTANT_P (v->mult_val) && INTVAL (v->mult_val) > 0
&& CONSTANT_P (v->add_val)
&& ! v->ignore && ! v->maybe_dead
&& ! v->ignore && ! v->maybe_dead && v->always_computable
&& v->mode == mode)
{
if (! eliminate_p)
......@@ -6089,7 +6089,7 @@ maybe_eliminate_biv_1 (x, insn, bl, eliminate_p, where)
for (v = bl->giv; v; v = v->next_iv)
if (CONSTANT_P (v->mult_val) && INTVAL (v->mult_val) > 0
&& ! v->ignore && ! v->maybe_dead
&& ! v->ignore && ! v->maybe_dead && v->always_computable
&& v->mode == mode)
{
rtx tem;
......@@ -6120,7 +6120,7 @@ maybe_eliminate_biv_1 (x, insn, bl, eliminate_p, where)
for (v = bl->giv; v; v = v->next_iv)
if (CONSTANT_P (v->mult_val) && INTVAL (v->mult_val) > 0
&& ! v->ignore && ! v->maybe_dead
&& ! v->ignore && ! v->maybe_dead && v->always_computable
&& v->mode == mode)
{
rtx tem;
......
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