From 0348f24525e0b403b2f2893204a9a925cfea500f Mon Sep 17 00:00:00 2001 From: ebotcazou Date: Mon, 3 Nov 2008 20:05:45 +0000 Subject: [PATCH] * config/i386/i386.c (classify_argument) : Promote partial integer class to full integer class if the offset is not word-aligned. git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@141559 138bc75d-0d04-0410-961f-82ee72b054a4 --- gcc/ChangeLog | 5 +++++ gcc/config/i386/i386.c | 3 ++- gcc/testsuite/ChangeLog | 4 ++++ gcc/testsuite/gcc.c-torture/execute/20081103-1.c | 17 +++++++++++++++++ 4 files changed, 28 insertions(+), 1 deletion(-) create mode 100644 gcc/testsuite/gcc.c-torture/execute/20081103-1.c diff --git a/gcc/ChangeLog b/gcc/ChangeLog index caf616a..0e826df 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,8 @@ +2008-11-03 Eric Botcazou + + * config/i386/i386.c (classify_argument) : Promote partial + integer class to full integer class if the offset is not word-aligned. + 2008-11-03 Andrew Pinski PR rtl-opt/37782 diff --git a/gcc/config/i386/i386.c b/gcc/config/i386/i386.c index 62249bb..ed18fcc 100644 --- a/gcc/config/i386/i386.c +++ b/gcc/config/i386/i386.c @@ -4930,7 +4930,8 @@ classify_argument (enum machine_mode mode, const_tree type, /* The partial classes are now full classes. */ if (subclasses[0] == X86_64_SSESF_CLASS && bytes != 4) subclasses[0] = X86_64_SSE_CLASS; - if (subclasses[0] == X86_64_INTEGERSI_CLASS && bytes != 4) + if (subclasses[0] == X86_64_INTEGERSI_CLASS + && !((bit_offset % 64) == 0 && bytes == 4)) subclasses[0] = X86_64_INTEGER_CLASS; for (i = 0; i < words; i++) diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog index 626145e..78e1ef6 100644 --- a/gcc/testsuite/ChangeLog +++ b/gcc/testsuite/ChangeLog @@ -1,5 +1,9 @@ 2008-11-03 Eric Botcazou + * gcc.c-torture/execute/20081103-1.c: New test. + +2008-11-03 Eric Botcazou + * gnat.dg/array5.adb New test. 2008-11-03 Richard Guenther diff --git a/gcc/testsuite/gcc.c-torture/execute/20081103-1.c b/gcc/testsuite/gcc.c-torture/execute/20081103-1.c new file mode 100644 index 0000000..c458fbc --- /dev/null +++ b/gcc/testsuite/gcc.c-torture/execute/20081103-1.c @@ -0,0 +1,17 @@ +struct S { char c; char arr[4]; float f; }; + +char A[4] = { '1', '2', '3', '4' }; + +void foo (struct S s) +{ + if (__builtin_memcmp (s.arr, A, 4)) + __builtin_abort (); +} + +int main (void) +{ + struct S s; + __builtin_memcpy (s.arr, A, 4); + foo (s); + return 0; +} -- 2.7.4