4.5.0-3
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Jakub Jelinek
parent
1074058107
commit
b5a20a1d7e
192
gcc45-pr44942.patch
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192
gcc45-pr44942.patch
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@ -0,0 +1,192 @@
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2010-07-16 Jakub Jelinek <jakub@redhat.com>
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PR target/44942
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* config/i386/i386-protos.h (ix86_function_arg_boundary): Change second
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argument to const_tree.
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* config/i386/i386.c (function_arg_advance): If padding needs to be
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inserted before argument, increment cum->words by number of padding
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words as well.
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(contains_aligned_value_p): Change argument to const_tree.
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(ix86_function_arg_boundary): Change second argument to const_tree.
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* gcc.c-torture/execute/pr44942.c: New test.
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* gcc.target/i386/pr44942.c: New test.
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--- gcc/config/i386/i386-protos.h.jj 2010-07-13 15:56:31.000000000 +0200
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+++ gcc/config/i386/i386-protos.h 2010-07-15 12:45:01.000000000 +0200
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@@ -137,8 +137,8 @@ extern enum machine_mode ix86_fp_compare
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extern rtx ix86_libcall_value (enum machine_mode);
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extern bool ix86_function_value_regno_p (int);
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extern bool ix86_function_arg_regno_p (int);
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-extern int ix86_function_arg_boundary (enum machine_mode, tree);
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-extern bool ix86_sol10_return_in_memory (const_tree,const_tree);
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+extern int ix86_function_arg_boundary (enum machine_mode, const_tree);
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+extern bool ix86_sol10_return_in_memory (const_tree, const_tree);
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extern rtx ix86_force_to_memory (enum machine_mode, rtx);
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extern void ix86_free_from_memory (enum machine_mode);
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extern enum calling_abi ix86_cfun_abi (void);
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--- gcc/config/i386/i386.c.jj 2010-07-13 15:56:31.000000000 +0200
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+++ gcc/config/i386/i386.c 2010-07-15 12:44:31.000000000 +0200
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@@ -6157,9 +6157,8 @@ function_arg_advance_64 (CUMULATIVE_ARGS
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if (!named && VALID_AVX256_REG_MODE (mode))
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return;
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- if (!examine_argument (mode, type, 0, &int_nregs, &sse_nregs))
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- cum->words += words;
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- else if (sse_nregs <= cum->sse_nregs && int_nregs <= cum->nregs)
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+ if (examine_argument (mode, type, 0, &int_nregs, &sse_nregs)
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+ && sse_nregs <= cum->sse_nregs && int_nregs <= cum->nregs)
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{
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cum->nregs -= int_nregs;
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cum->sse_nregs -= sse_nregs;
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@@ -6167,7 +6166,11 @@ function_arg_advance_64 (CUMULATIVE_ARGS
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cum->sse_regno += sse_nregs;
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}
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else
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- cum->words += words;
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+ {
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+ int align = ix86_function_arg_boundary (mode, type) / BITS_PER_WORD;
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+ cum->words = (cum->words + align - 1) & ~(align - 1);
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+ cum->words += words;
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+ }
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}
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static void
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@@ -6508,7 +6511,7 @@ ix86_pass_by_reference (CUMULATIVE_ARGS
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/* Return true when TYPE should be 128bit aligned for 32bit argument passing
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ABI. */
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static bool
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-contains_aligned_value_p (tree type)
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+contains_aligned_value_p (const_tree type)
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{
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enum machine_mode mode = TYPE_MODE (type);
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if (((TARGET_SSE && SSE_REG_MODE_P (mode))
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@@ -6558,7 +6561,7 @@ contains_aligned_value_p (tree type)
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specified mode and type. */
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int
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-ix86_function_arg_boundary (enum machine_mode mode, tree type)
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+ix86_function_arg_boundary (enum machine_mode mode, const_tree type)
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{
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int align;
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if (type)
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--- gcc/testsuite/gcc.c-torture/execute/pr44942.c.jj 2010-07-15 13:41:28.000000000 +0200
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+++ gcc/testsuite/gcc.c-torture/execute/pr44942.c 2010-07-15 13:46:40.000000000 +0200
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@@ -0,0 +1,70 @@
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+/* PR target/44942 */
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+
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+#include <stdarg.h>
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+
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+void
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+test1 (int a, int b, int c, int d, int e, int f, int g, long double h, ...)
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+{
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+ int i;
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+ va_list ap;
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+
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+ va_start (ap, h);
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+ i = va_arg (ap, int);
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+ if (i != 1234)
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+ __builtin_abort ();
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+ va_end (ap);
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+}
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+
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+void
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+test2 (int a, int b, int c, int d, int e, int f, int g, long double h, int i,
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+ long double j, int k, long double l, int m, long double n, ...)
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+{
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+ int o;
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+ va_list ap;
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+
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+ va_start (ap, n);
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+ o = va_arg (ap, int);
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+ if (o != 1234)
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+ __builtin_abort ();
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+ va_end (ap);
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+}
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+
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+void
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+test3 (double a, double b, double c, double d, double e, double f,
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+ double g, long double h, ...)
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+{
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+ double i;
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+ va_list ap;
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+
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+ va_start (ap, h);
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+ i = va_arg (ap, double);
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+ if (i != 1234.0)
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+ __builtin_abort ();
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+ va_end (ap);
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+}
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+
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+void
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+test4 (double a, double b, double c, double d, double e, double f, double g,
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+ long double h, double i, long double j, double k, long double l,
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+ double m, long double n, ...)
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+{
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+ double o;
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+ va_list ap;
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+
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+ va_start (ap, n);
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+ o = va_arg (ap, double);
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+ if (o != 1234.0)
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+ __builtin_abort ();
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+ va_end (ap);
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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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+ test1 (0, 0, 0, 0, 0, 0, 0, 0.0L, 1234);
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+ test2 (0, 0, 0, 0, 0, 0, 0, 0.0L, 0, 0.0L, 0, 0.0L, 0, 0.0L, 1234);
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+ test3 (0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0L, 1234.0);
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+ test4 (0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0L, 0.0, 0.0L,
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+ 0.0, 0.0L, 0.0, 0.0L, 1234.0);
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+ return 0;
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+}
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--- gcc/testsuite/gcc.target/i386/pr44942.c.jj 2010-07-15 13:52:37.000000000 +0200
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+++ gcc/testsuite/gcc.target/i386/pr44942.c 2010-07-15 13:53:24.000000000 +0200
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@@ -0,0 +1,44 @@
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+/* PR target/44942 */
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+/* { dg-do run { target lp64 } } */
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+
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+#include <stdarg.h>
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+#include <emmintrin.h>
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+
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+void
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+test1 (double a, double b, double c, double d, double e, double f,
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+ double g, __m128d h, ...)
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+{
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+ double i;
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+ va_list ap;
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+
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+ va_start (ap, h);
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+ i = va_arg (ap, double);
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+ if (i != 1234.0)
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+ __builtin_abort ();
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+ va_end (ap);
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+}
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+
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+void
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+test2 (double a, double b, double c, double d, double e, double f, double g,
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+ __m128d h, double i, __m128d j, double k, __m128d l,
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+ double m, __m128d n, ...)
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+{
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+ double o;
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+ va_list ap;
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+
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+ va_start (ap, n);
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+ o = va_arg (ap, double);
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+ if (o != 1234.0)
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+ __builtin_abort ();
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+ va_end (ap);
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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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+ __m128d m = _mm_set1_pd (7.0);
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+ test1 (0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, m, 1234.0);
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+ test2 (0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, m, 0.0, m,
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+ 0.0, m, 0.0, m, 1234.0);
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+ return 0;
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+}
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