From b6d53324092ee2b15c4a34fb55f2556863223d86 Mon Sep 17 00:00:00 2001 From: Richard Sandiford Date: Fri, 15 Nov 2019 12:57:47 +0000 Subject: [PATCH] [rs6000] Use VIEW_CONVERT_EXPR to reinterpret vectors (PR 92515) The new tree-cfg.c checking in r278245 tripped on folds of ALTIVEC_BUILTIN_VPERM_*, which were using gimple_convert rather than VIEW_CONVERT_EXPR to reinterpret the contents of a vector as a different type. 2019-11-15 Richard Sandiford gcc/ PR target/92515 * config/rs6000/rs6000-call.c (rs6000_gimple_fold_builtin): Use VIEW_CONVERT_EXPR to reinterpret vectors as different types. From-SVN: r278292 --- gcc/ChangeLog | 6 ++++++ gcc/config/rs6000/rs6000-call.c | 9 ++++++--- 2 files changed, 12 insertions(+), 3 deletions(-) diff --git a/gcc/ChangeLog b/gcc/ChangeLog index d44f5a3fce0..c2d33558cd1 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,9 @@ +2019-11-15 Richard Sandiford + + PR target/92515 + * config/rs6000/rs6000-call.c (rs6000_gimple_fold_builtin): Use + VIEW_CONVERT_EXPR to reinterpret vectors as different types. + 2019-11-15 Kwok Cheung Yeung * config/gcn/gcn.c (gcn_regno_reg_class): Return VCC_CONDITIONAL_REG diff --git a/gcc/config/rs6000/rs6000-call.c b/gcc/config/rs6000/rs6000-call.c index 00ba74551b3..85ff85299d1 100644 --- a/gcc/config/rs6000/rs6000-call.c +++ b/gcc/config/rs6000/rs6000-call.c @@ -6173,13 +6173,16 @@ rs6000_gimple_fold_builtin (gimple_stmt_iterator *gsi) // convert arg0 and arg1 to match the type of the permute // for the VEC_PERM_EXPR operation. tree permute_type = (TREE_TYPE (permute)); - tree arg0_ptype = gimple_convert (&stmts, loc, permute_type, arg0); - tree arg1_ptype = gimple_convert (&stmts, loc, permute_type, arg1); + tree arg0_ptype = gimple_build (&stmts, loc, VIEW_CONVERT_EXPR, + permute_type, arg0); + tree arg1_ptype = gimple_build (&stmts, loc, VIEW_CONVERT_EXPR, + permute_type, arg1); tree lhs_ptype = gimple_build (&stmts, loc, VEC_PERM_EXPR, permute_type, arg0_ptype, arg1_ptype, permute); // Convert the result back to the desired lhs type upon completion. - tree temp = gimple_convert (&stmts, loc, TREE_TYPE (lhs), lhs_ptype); + tree temp = gimple_build (&stmts, loc, VIEW_CONVERT_EXPR, + TREE_TYPE (lhs), lhs_ptype); gsi_insert_seq_before (gsi, stmts, GSI_SAME_STMT); g = gimple_build_assign (lhs, temp); gimple_set_location (g, loc); -- 2.30.2