Yasm don't like fnstsw, requires an %ax argument. Gas can cope with.

[r17128]

diff --git a/ir/be/ia32/ia32_spec.pl b/ir/be/ia32/ia32_spec.pl
index 9ee0999..33fbfda 100644 (file)
--- a/ir/be/ia32/ia32_spec.pl
+++ b/ir/be/ia32/ia32_spec.pl
@@ -2380,7 +2380,7 @@ femms => {
 FucomFnstsw => {
        reg_req   => { },
        emit      => ". fucom %X1\n".
-                    ". fnstsw",
+                    ". fnstsw %%ax",
        attr_type => "ia32_x87_attr_t",
        latency   => 2,
 },
@@ -2388,7 +2388,7 @@ FucomFnstsw => {
 FucompFnstsw => {
        reg_req   => { },
        emit      => ". fucomp %X1\n".
-                    ". fnstsw",
+                    ". fnstsw %%ax",
        attr_type => "ia32_x87_attr_t",
        latency   => 2,
 },
@@ -2396,7 +2396,7 @@ FucompFnstsw => {
 FucomppFnstsw => {
        reg_req   => { },
        emit      => ". fucompp\n".
-                    ". fnstsw",
+                    ". fnstsw %%ax",
        attr_type => "ia32_x87_attr_t",
        latency   => 2,
 },
@@ -2418,7 +2418,7 @@ Fucompi => {
 FtstFnstsw => {
        reg_req   => { },
        emit      => ". ftst\n".
-                    ". fnstsw",
+                    ". fnstsw %%ax",
        attr_type => "ia32_x87_attr_t",
        latency   => 2,
 },