80 lines
1.8 KiB
Diff
80 lines
1.8 KiB
Diff
2009-04-26 H.J. Lu <hongjiu.lu@intel.com>
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PR target/39903
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* config/i386/i386.c (construct_container): Don't call
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gen_reg_or_parallel with BLKmode for X86_64_SSE_CLASS,
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X86_64_SSESF_CLASS and X86_64_SSEDF_CLASS.
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PR target/39903
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* gcc.dg/torture/pr39903-1.c: New.
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* gcc.dg/torture/pr39903-2.c: Likewise.
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--- gcc/config/i386/i386.c (revision 146817)
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+++ gcc/config/i386/i386.c (working copy)
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@@ -5466,7 +5466,10 @@ construct_container (enum machine_mode m
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case X86_64_SSE_CLASS:
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case X86_64_SSESF_CLASS:
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case X86_64_SSEDF_CLASS:
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- return gen_reg_or_parallel (mode, orig_mode, SSE_REGNO (sse_regno));
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+ if (mode != BLKmode)
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+ return gen_reg_or_parallel (mode, orig_mode,
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+ SSE_REGNO (sse_regno));
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+ break;
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case X86_64_X87_CLASS:
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case X86_64_COMPLEX_X87_CLASS:
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return gen_rtx_REG (mode, FIRST_STACK_REG);
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--- gcc/testsuite/gcc.dg/torture/pr39903-1.c (revision 0)
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+++ gcc/testsuite/gcc.dg/torture/pr39903-1.c (revision 0)
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@@ -0,0 +1,24 @@
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+/* PR target/39903 */
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+/* { dg-do run } */
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+/* { dg-options "-Wno-psabi" } */
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+
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+struct X {
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+ double d;
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+ double b[];
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+};
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+
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+struct X __attribute__((noinline))
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+foo (double d)
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+{
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+ struct X x;
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+ x.d = d;
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+ return x;
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+}
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+extern void abort (void);
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+int main()
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+{
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+ struct X x = foo(3.0);
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+ if (x.d != 3.0)
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+ abort ();
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+ return 0;
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+}
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--- gcc/testsuite/gcc.dg/torture/pr39903-2.c (revision 0)
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+++ gcc/testsuite/gcc.dg/torture/pr39903-2.c (revision 0)
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@@ -0,0 +1,24 @@
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+/* PR target/39903 */
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+/* { dg-do run } */
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+/* { dg-options "-Wno-psabi" } */
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+
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+struct X {
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+ float d;
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+ float b[];
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+};
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+
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+struct X __attribute__((noinline))
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+foo (float d)
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+{
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+ struct X x;
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+ x.d = d;
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+ return x;
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+}
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+extern void abort (void);
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+int main()
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+{
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+ struct X x = foo(3.0);
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+ if (x.d != 3.0)
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+ abort ();
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+ return 0;
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+}
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