From 95842021896e8c231cb23d0073c8a08dfe898744 Mon Sep 17 00:00:00 2001 From: Eric Botcazou Date: Wed, 12 Oct 2016 21:04:26 +0000 Subject: [PATCH] visium.c (visium_gimplify_va_arg): Emit a big-endian correction if the type is smaller than a word. * config/visium/visium.c (visium_gimplify_va_arg): Emit a big-endian correction if the type is smaller than a word. (visium_select_cc_mode): Add ... fall through ... comment. From-SVN: r241076 --- gcc/ChangeLog | 6 ++++++ gcc/config/visium/visium.c | 17 +++++++++++++++-- 2 files changed, 21 insertions(+), 2 deletions(-) diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 3a67339..12a324c 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,9 @@ +2016-10-12 Eric Botcazou + + * config/visium/visium.c (visium_gimplify_va_arg): Emit a big-endian + correction if the type is smaller than a word. + (visium_select_cc_mode): Add ... fall through ... comment. + 2016-10-12 Segher Boessenkool * config/rs6000/rs6000.c (machine_function): Add new fields diff --git a/gcc/config/visium/visium.c b/gcc/config/visium/visium.c index 4585af5..a0035c6 100644 --- a/gcc/config/visium/visium.c +++ b/gcc/config/visium/visium.c @@ -1626,8 +1626,8 @@ visium_gimplify_va_arg (tree valist, tree type, gimple_seq *pre_p, 7: { 8: bytes = 0; 9: addr_rtx = ovfl; - 10: ovfl += rsize; - 11: } + 10: ovfl += rsize; + 11: } */ @@ -1691,6 +1691,16 @@ visium_gimplify_va_arg (tree valist, tree type, gimple_seq *pre_p, gimplify_and_add (t, pre_p); t = build1 (LABEL_EXPR, void_type_node, lab_over); gimplify_and_add (t, pre_p); + + /* Emit a big-endian correction if size < UNITS_PER_WORD. */ + if (size < UNITS_PER_WORD) + { + t = build2 (POINTER_PLUS_EXPR, TREE_TYPE (addr), addr, + size_int (UNITS_PER_WORD - size)); + t = build2 (MODIFY_EXPR, void_type_node, addr, t); + gimplify_and_add (t, pre_p); + } + addr = fold_convert (ptrtype, addr); return build_va_arg_indirect_ref (addr); @@ -2848,6 +2858,9 @@ visium_select_cc_mode (enum rtx_code code, rtx op0, rtx op1) case CONST_INT: /* This is a degenerate case, typically an uninitialized variable. */ gcc_assert (op0 == constm1_rtx); + + /* ... fall through ... */ + case REG: case AND: case IOR: -- 2.7.4