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| author | Andrew Pinski <andrew_pinski@playstation.sony.com> | 2007-04-23 01:53:56 +0000 |
|---|---|---|
| committer | Andrew Pinski <pinskia@gcc.gnu.org> | 2007-04-22 18:53:56 -0700 |
| commit | 1f2ad84c3c4c7975b49b09ae9fc1a6b62be19e13 (patch) | |
| tree | 4513c5254a2c57ebf8614052ec61b449af5ec70e /gcc | |
| parent | 51da21be95f20ad512253b0420ea743506dd2f0f (diff) | |
| download | gcc-1f2ad84c3c4c7975b49b09ae9fc1a6b62be19e13.zip gcc-1f2ad84c3c4c7975b49b09ae9fc1a6b62be19e13.tar.gz gcc-1f2ad84c3c4c7975b49b09ae9fc1a6b62be19e13.tar.bz2 | |
re PR middle-end/31448 (ICE in expand_shift with bit fields and expand inlining constants)
2007-04-22 Andrew Pinski <andrew_pinski@playstation.sony.com>
PR middle-end/31448
* expr.c (reduce_to_bit_field_precision): Handle
CONST_INT rtx's.
2007-04-22 Andrew Pinski <andrew_pinski@playstation.sony.com>
PR middle-end/31448
* gcc.c-torture/execute/pr31448.c: New testcase.
From-SVN: r124054
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 6 | ||||
| -rw-r--r-- | gcc/expr.c | 9 | ||||
| -rw-r--r-- | gcc/testsuite/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/testsuite/gcc.c-torture/execute/pr31448.c | 36 |
4 files changed, 55 insertions, 1 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index b9e35dc..a99d0c8 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,9 @@ +2007-04-22 Andrew Pinski <andrew_pinski@playstation.sony.com> + + PR middle-end/31448 + * expr.c (reduce_to_bit_field_precision): Handle + CONST_INT rtx's. + 2007-04-22 Uros Bizjak <ubizjak@gmail.com> PR tree-optimization/24659 @@ -8962,7 +8962,14 @@ reduce_to_bit_field_precision (rtx exp, rtx target, tree type) HOST_WIDE_INT prec = TYPE_PRECISION (type); if (target && GET_MODE (target) != GET_MODE (exp)) target = 0; - if (TYPE_UNSIGNED (type)) + /* For constant values, reduce using build_int_cst_type. */ + if (GET_CODE (exp) == CONST_INT) + { + HOST_WIDE_INT value = INTVAL (exp); + tree t = build_int_cst_type (type, value); + return expand_expr (t, target, VOIDmode, EXPAND_NORMAL); + } + else if (TYPE_UNSIGNED (type)) { rtx mask; if (prec < HOST_BITS_PER_WIDE_INT) diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog index 571c5d9..2546590 100644 --- a/gcc/testsuite/ChangeLog +++ b/gcc/testsuite/ChangeLog @@ -1,3 +1,8 @@ +2007-04-22 Andrew Pinski <andrew_pinski@playstation.sony.com> + + PR middle-end/31448 + * gcc.c-torture/execute/pr31448.c: New testcase. + 2007-04-22 Nick Clifton <nickc@redhat.com> * gcc.dg/20020312-2.c: Add support for the FRV. diff --git a/gcc/testsuite/gcc.c-torture/execute/pr31448.c b/gcc/testsuite/gcc.c-torture/execute/pr31448.c new file mode 100644 index 0000000..720ba92 --- /dev/null +++ b/gcc/testsuite/gcc.c-torture/execute/pr31448.c @@ -0,0 +1,36 @@ +/* PR middle-end/31448, this used to ICE during expand because + reduce_to_bit_field_precision was not ready to handle constants. */ + +typedef struct _st { + int iIndex : 24; + int iIndex1 : 24; +} st; +st *next; +void g(void) +{ + st *next = 0; + int nIndx; + const static int constreg[] = { 0,}; + nIndx = 0; + next->iIndex = constreg[nIndx]; +} +void f(void) +{ + int nIndx; + const static int constreg[] = { 0xFEFEFEFE,}; + nIndx = 0; + next->iIndex = constreg[nIndx]; + next->iIndex1 = constreg[nIndx]; +} +int main(void) +{ + st a; + next = &a; + f(); + if (next->iIndex != 0xFFFEFEFE) + __builtin_abort (); + if (next->iIndex1 != 0xFFFEFEFE) + __builtin_abort (); + return 0; +} + |