42 lines
1.3 KiB
Diff
42 lines
1.3 KiB
Diff
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diff -Nurp a/gcc/testsuite/gcc.dg/torture/pr92252.c b/gcc/testsuite/gcc.dg/torture/pr92252.c
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--- a/gcc/testsuite/gcc.dg/torture/pr92252.c 1970-01-01 08:00:00.000000000 +0800
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+++ b/gcc/testsuite/gcc.dg/torture/pr92252.c 2020-07-03 10:39:44.808000000 +0800
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@@ -0,0 +1,23 @@
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+/* { do-do compile } */
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+/* { dg-additional-options "-ftree-vectorize" } */
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+
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+long int ar;
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+int dt;
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+
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+long int
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+pc (unsigned long int q3, int zw)
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+{
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+ long int em = 0;
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+
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+ while (zw < 1)
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+ {
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+ q3 = zw * 2ul;
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+ if (q3 != 0)
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+ for (ar = 0; ar < 2; ++ar)
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+ em = dt;
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+
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+ ++zw;
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+ }
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+
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+ return em;
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+}
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diff -Nurp a/gcc/tree-vect-slp.c b/gcc/tree-vect-slp.c
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--- a/gcc/tree-vect-slp.c 2020-07-03 10:35:59.876000000 +0800
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+++ b/gcc/tree-vect-slp.c 2020-07-03 10:39:44.808000000 +0800
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@@ -581,6 +581,10 @@ again:
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{
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swap_ssa_operands (stmt, gimple_assign_rhs2_ptr (stmt),
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gimple_assign_rhs3_ptr (stmt));
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+ if (STMT_VINFO_REDUC_IDX (stmt_info) == 1)
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+ STMT_VINFO_REDUC_IDX (stmt_info) = 2;
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+ else if (STMT_VINFO_REDUC_IDX (stmt_info) == 2)
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+ STMT_VINFO_REDUC_IDX (stmt_info) = 1;
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bool honor_nans = HONOR_NANS (TREE_OPERAND (cond, 0));
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code = invert_tree_comparison (TREE_CODE (cond), honor_nans);
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gcc_assert (code != ERROR_MARK);
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