diff --git a/gcc/config/i386/i386.cc b/gcc/config/i386/i386.cc index 8251b67e2d6d74825167c5f26b078b0fdb576af8..641e768033553be716299de01b158e403048382a 100644 --- a/gcc/config/i386/i386.cc +++ b/gcc/config/i386/i386.cc @@ -663,7 +663,8 @@ ix86_can_inline_p (tree caller, tree callee) static bool ix86_in_large_data_p (tree exp) { - if (ix86_cmodel != CM_MEDIUM && ix86_cmodel != CM_MEDIUM_PIC) + if (ix86_cmodel != CM_MEDIUM && ix86_cmodel != CM_MEDIUM_PIC + && ix86_cmodel != CM_LARGE && ix86_cmodel != CM_LARGE_PIC) return false; if (exp == NULL_TREE) @@ -874,7 +875,8 @@ x86_elf_aligned_decl_common (FILE *file, tree decl, const char *name, unsigned HOST_WIDE_INT size, unsigned align) { - if ((ix86_cmodel == CM_MEDIUM || ix86_cmodel == CM_MEDIUM_PIC) + if ((ix86_cmodel == CM_MEDIUM || ix86_cmodel == CM_MEDIUM_PIC + || ix86_cmodel == CM_LARGE || ix86_cmodel == CM_LARGE_PIC) && size > (unsigned int)ix86_section_threshold) { switch_to_section (get_named_section (decl, ".lbss", 0)); @@ -895,7 +897,8 @@ void x86_output_aligned_bss (FILE *file, tree decl, const char *name, unsigned HOST_WIDE_INT size, unsigned align) { - if ((ix86_cmodel == CM_MEDIUM || ix86_cmodel == CM_MEDIUM_PIC) + if ((ix86_cmodel == CM_MEDIUM || ix86_cmodel == CM_MEDIUM_PIC + || ix86_cmodel == CM_LARGE || ix86_cmodel == CM_LARGE_PIC) && size > (unsigned int)ix86_section_threshold) switch_to_section (get_named_section (decl, ".lbss", 0)); else diff --git a/gcc/config/i386/i386.opt b/gcc/config/i386/i386.opt index b8382c4809988df8f167b0e93b3919594d42cd6e..0c3b8f4b62189f7d1dfc253b3e1c62fa0894bd7f 100644 --- a/gcc/config/i386/i386.opt +++ b/gcc/config/i386/i386.opt @@ -282,7 +282,7 @@ Branches are this expensive (arbitrary units). mlarge-data-threshold= Target RejectNegative Joined UInteger Var(ix86_section_threshold) Init(DEFAULT_LARGE_SECTION_THRESHOLD) --mlarge-data-threshold=<number> Data greater than given threshold will go into .ldata section in x86-64 medium model. +-mlarge-data-threshold=<number> Data greater than given threshold will go into a large data section in x86-64 medium and large code models. mcmodel= Target RejectNegative Joined Enum(cmodel) Var(ix86_cmodel) Init(CM_32) diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi index a26dc5aae69ff4fbd4914f6ac10362bda378ef00..2a500c1baeea25003eaf8be4d2dde6716f9aba2a 100644 --- a/gcc/doc/invoke.texi +++ b/gcc/doc/invoke.texi @@ -33398,9 +33398,9 @@ the cache line size. @samp{compat} is the default. @opindex mlarge-data-threshold @item -mlarge-data-threshold=@var{threshold} -When @option{-mcmodel=medium} is specified, data objects larger than -@var{threshold} are placed in the large data section. This value must be the -same across all objects linked into the binary, and defaults to 65535. +When @option{-mcmodel=medium} or @option{-mcmodel=large} is specified, data +objects larger than @var{threshold} are placed in large data sections. The +default is 65535. @opindex mrtd @item -mrtd diff --git a/gcc/testsuite/gcc.target/i386/large-data.c b/gcc/testsuite/gcc.target/i386/large-data.c new file mode 100644 index 0000000000000000000000000000000000000000..bdd4acd30b8b0c0a00f138334abb1ef9bdd4c32d --- /dev/null +++ b/gcc/testsuite/gcc.target/i386/large-data.c @@ -0,0 +1,13 @@ +/* { dg-do compile } */ +/* { dg-require-effective-target lp64 } */ +/* { dg-options "-O2 -mcmodel=large -mlarge-data-threshold=4" } */ +/* { dg-final { scan-assembler {\.lbss} } } */ +/* { dg-final { scan-assembler {\.bss} } } */ +/* { dg-final { scan-assembler {\.ldata} } } */ +/* { dg-final { scan-assembler {\.data} } } */ +/* { dg-final { scan-assembler {\.lrodata} } } */ +/* { dg-final { scan-assembler {\.rodata} } } */ + +const char rodata_a[] = "abc", rodata_b[] = "abcd"; +char data_a[4] = {1}, data_b[5] = {1}; +char bss_a[4], bss_b[5];