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-rw-r--r--gcc/gimplify.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/gcc/gimplify.c b/gcc/gimplify.c
index 9ce3dd9..623d33d 100644
--- a/gcc/gimplify.c
+++ b/gcc/gimplify.c
@@ -5272,7 +5272,7 @@ gimplify_asm_expr (tree *expr_p, gimple_seq *pre_p, gimple_seq *post_p)
stmt = gimple_build_asm_vec (TREE_STRING_POINTER (ASM_STRING (expr)),
inputs, outputs, clobbers, labels);
- gimple_asm_set_volatile (stmt, ASM_VOLATILE_P (expr));
+ gimple_asm_set_volatile (stmt, ASM_VOLATILE_P (expr) || noutputs == 0);
gimple_asm_set_input (stmt, ASM_INPUT_P (expr));
gimplify_seq_add_stmt (pre_p, stmt);