70 lines
1.7 KiB
Diff
70 lines
1.7 KiB
Diff
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This backport contains 1 patch from gcc main stream tree.
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The commit id of these patchs list as following in the order of time.
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0001-optabs-Don-t-use-scalar-conversions-for-vectors-PR93.patch
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b6268016bf46dd63227dcbb73d13c30a3b4b9d2a
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diff --git a/gcc/optabs-tree.c b/gcc/optabs-tree.c
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index 3d829c27826..badd30bfda8 100644
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--- a/gcc/optabs-tree.c
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+++ b/gcc/optabs-tree.c
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@@ -284,9 +284,14 @@ supportable_convert_operation (enum tree_code code,
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machine_mode m1,m2;
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bool truncp;
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+ gcc_assert (VECTOR_TYPE_P (vectype_out) && VECTOR_TYPE_P (vectype_in));
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+
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m1 = TYPE_MODE (vectype_out);
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m2 = TYPE_MODE (vectype_in);
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+ if (!VECTOR_MODE_P (m1) || !VECTOR_MODE_P (m2))
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+ return false;
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+
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/* First check if we can done conversion directly. */
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if ((code == FIX_TRUNC_EXPR
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&& can_fix_p (m1,m2,TYPE_UNSIGNED (vectype_out), &truncp)
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diff --git a/gcc/testsuite/gcc.dg/vect/pr93843-1.c b/gcc/testsuite/gcc.dg/vect/pr93843-1.c
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new file mode 100644
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index 00000000000..23a79ca4c96
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--- /dev/null
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+++ b/gcc/testsuite/gcc.dg/vect/pr93843-1.c
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@@ -0,0 +1,21 @@
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+char a;
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+struct S { short b, c; } d;
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+
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+__attribute__((noipa)) void
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+foo (int x)
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+{
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+ if (x != 4)
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+ __builtin_abort ();
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+}
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+
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+int
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+main ()
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+{
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+ short *g = &d.c, *h = &d.b;
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+ char e = 4 - a;
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+ int f;
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+ *h = *g = e;
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+ for (f = 0; f < 2; f++)
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+ foo (d.c);
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+ return 0;
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+}
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diff --git a/gcc/testsuite/gcc.dg/vect/pr93843-2.c b/gcc/testsuite/gcc.dg/vect/pr93843-2.c
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new file mode 100644
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index 00000000000..5fae3e5be17
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--- /dev/null
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+++ b/gcc/testsuite/gcc.dg/vect/pr93843-2.c
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@@ -0,0 +1,11 @@
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+char in[2] = {2, 2};
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+short out[2] = {};
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+
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+int
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+main()
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+{
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+ for (int i = 0; i < 2; ++i)
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+ out[i] = in[i];
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+ asm("":::"memory");
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+ if (out[0] != 2) __builtin_abort();
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+}
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