From 10a9f2beac265deecca8b66b352b0162cd9713bf Mon Sep 17 00:00:00 2001 From: Jim Wilson Date: Wed, 7 Oct 1998 12:12:21 +0000 Subject: [PATCH] Fix for irix6 -O0 bug, see testcase gcc.c-torture/compile/981007-1.c. * expr.c (emit_group_store): Handle a PARALLEL destination. From-SVN: r22893 --- gcc/ChangeLog | 4 ++++ gcc/expr.c | 21 ++++++++++++++++++++- 2 files changed, 24 insertions(+), 1 deletion(-) diff --git a/gcc/ChangeLog b/gcc/ChangeLog index e6ff5938796..0ded56ee2e9 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,7 @@ +Wed Oct 7 12:10:46 1998 Jim Wilson + + * expr.c (emit_group_store): Handle a PARALLEL destination. + Wed Oct 7 10:07:29 1998 Richard Henderson * gcse.c (pre_insert_insn): When a call ends a bb, insert diff --git a/gcc/expr.c b/gcc/expr.c index adb2d4ad1f9..d2dcdf8c592 100644 --- a/gcc/expr.c +++ b/gcc/expr.c @@ -2006,7 +2006,26 @@ emit_group_store (orig_dst, src, ssize, align) /* If we won't be storing directly into memory, protect the real destination from strange tricks we might play. */ dst = orig_dst; - if (GET_CODE (dst) != MEM) + if (GET_CODE (dst) == PARALLEL) + { + rtx temp; + + /* We can get a PARALLEL dst if there is a conditional expression in + a return statement. In that case, the dst and src are the same, + so no action is necessary. */ + if (rtx_equal_p (dst, src)) + return; + + /* It is unclear if we can ever reach here, but we may as well handle + it. Allocate a temporary, and split this into a store/load to/from + the temporary. */ + + temp = assign_stack_temp (GET_MODE (dst), ssize, 0); + emit_group_store (temp, src, ssize, align); + emit_group_load (dst, temp, ssize, align); + return; + } + else if (GET_CODE (dst) != MEM) { dst = gen_reg_rtx (GET_MODE (orig_dst)); /* Make life a bit easier for combine. */ -- 2.30.2