diff options
Diffstat (limited to 'gcc/config/rs6000/rs6000.c')
| -rw-r--r-- | gcc/config/rs6000/rs6000.c | 79 |
1 files changed, 79 insertions, 0 deletions
diff --git a/gcc/config/rs6000/rs6000.c b/gcc/config/rs6000/rs6000.c index de0c6df309b..7a38dea0319 100644 --- a/gcc/config/rs6000/rs6000.c +++ b/gcc/config/rs6000/rs6000.c @@ -77,6 +77,7 @@ #endif #include "case-cfn-macros.h" #include "ppc-auxv.h" +#include "tree-ssa-propagate.h" /* This file should be included last. */ #include "target-def.h" @@ -16571,6 +16572,76 @@ rs6000_gimple_fold_builtin (gimple_stmt_iterator *gsi) gsi_replace (gsi, g, true); return true; } + /* Flavors of vec_rotate_left. */ + case ALTIVEC_BUILTIN_VRLB: + case ALTIVEC_BUILTIN_VRLH: + case ALTIVEC_BUILTIN_VRLW: + case P8V_BUILTIN_VRLD: + { + arg0 = gimple_call_arg (stmt, 0); + arg1 = gimple_call_arg (stmt, 1); + lhs = gimple_call_lhs (stmt); + gimple *g = gimple_build_assign (lhs, LROTATE_EXPR, arg0, arg1); + gimple_set_location (g, gimple_location (stmt)); + gsi_replace (gsi, g, true); + return true; + } + /* Flavors of vector shift right algebraic. + vec_sra{b,h,w} -> vsra{b,h,w}. */ + case ALTIVEC_BUILTIN_VSRAB: + case ALTIVEC_BUILTIN_VSRAH: + case ALTIVEC_BUILTIN_VSRAW: + case P8V_BUILTIN_VSRAD: + { + arg0 = gimple_call_arg (stmt, 0); + arg1 = gimple_call_arg (stmt, 1); + lhs = gimple_call_lhs (stmt); + gimple *g = gimple_build_assign (lhs, RSHIFT_EXPR, arg0, arg1); + gimple_set_location (g, gimple_location (stmt)); + gsi_replace (gsi, g, true); + return true; + } + /* Flavors of vector shift left. + builtin_altivec_vsl{b,h,w} -> vsl{b,h,w}. */ + case ALTIVEC_BUILTIN_VSLB: + case ALTIVEC_BUILTIN_VSLH: + case ALTIVEC_BUILTIN_VSLW: + case P8V_BUILTIN_VSLD: + { + arg0 = gimple_call_arg (stmt, 0); + if (INTEGRAL_TYPE_P (TREE_TYPE (TREE_TYPE (arg0))) + && !TYPE_OVERFLOW_WRAPS (TREE_TYPE (TREE_TYPE (arg0)))) + return false; + arg1 = gimple_call_arg (stmt, 1); + lhs = gimple_call_lhs (stmt); + gimple *g = gimple_build_assign (lhs, LSHIFT_EXPR, arg0, arg1); + gimple_set_location (g, gimple_location (stmt)); + gsi_replace (gsi, g, true); + return true; + } + /* Flavors of vector shift right. */ + case ALTIVEC_BUILTIN_VSRB: + case ALTIVEC_BUILTIN_VSRH: + case ALTIVEC_BUILTIN_VSRW: + case P8V_BUILTIN_VSRD: + { + arg0 = gimple_call_arg (stmt, 0); + arg1 = gimple_call_arg (stmt, 1); + lhs = gimple_call_lhs (stmt); + gimple_seq stmts = NULL; + /* Convert arg0 to unsigned. */ + tree arg0_unsigned + = gimple_build (&stmts, VIEW_CONVERT_EXPR, + unsigned_type_for (TREE_TYPE (arg0)), arg0); + tree res + = gimple_build (&stmts, RSHIFT_EXPR, + TREE_TYPE (arg0_unsigned), arg0_unsigned, arg1); + /* Convert result back to the lhs type. */ + res = gimple_build (&stmts, VIEW_CONVERT_EXPR, TREE_TYPE (lhs), res); + gsi_insert_seq_before (gsi, stmts, GSI_SAME_STMT); + update_call_from_tree (gsi, res); + return true; + } default: break; } @@ -18072,6 +18143,14 @@ builtin_function_type (machine_mode mode_ret, machine_mode mode_arg0, h.uns_p[2] = 1; break; + /* unsigned second arguments (vector shift right). */ + case ALTIVEC_BUILTIN_VSRB: + case ALTIVEC_BUILTIN_VSRH: + case ALTIVEC_BUILTIN_VSRW: + case P8V_BUILTIN_VSRD: + h.uns_p[2] = 1; + break; + default: break; } |