From ab56390384cd5168b548ff07e6f0c9c4d41420fb Mon Sep 17 00:00:00 2001 From: Richard Biener Date: Thu, 4 Jun 2020 16:26:36 +0100 Subject: [PATCH] aarch64: PR target/95526: Fix gimplification of varargs This patch fixes a latent bug exposed by eb72dc663e9070b281be83a80f6f838a3a878822 in the aarch64 backend that was causing wrong codegen and several testsuite failures. See the discussion on the bug for details. Bootstrapped and regtested on aarch64-linux-gnu. Cleaned up several failing tests and no new fails introduced. 2020-06-04 Richard Biener gcc/: * config/aarch64/aarch64.c (aarch64_gimplify_va_arg_expr): Ensure that tmp_ha is marked TREE_ADDRESSABLE. --- gcc/config/aarch64/aarch64.c | 1 + 1 file changed, 1 insertion(+) diff --git a/gcc/config/aarch64/aarch64.c b/gcc/config/aarch64/aarch64.c index 6352d4ff78a..97da6076239 100644 --- a/gcc/config/aarch64/aarch64.c +++ b/gcc/config/aarch64/aarch64.c @@ -16370,6 +16370,7 @@ aarch64_gimplify_va_arg_expr (tree valist, tree type, gimple_seq *pre_p, } /* *(field_ptr_t)&ha = *((field_ptr_t)vr_saved_area */ + TREE_ADDRESSABLE (tmp_ha) = 1; tmp_ha = build1 (ADDR_EXPR, field_ptr_t, tmp_ha); addr = t; t = fold_convert (field_ptr_t, addr); -- 2.30.2