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Re: [Tinycc-devel] __asm__ "unknown constraint 't'" issue
From: |
Roy Tam |
Subject: |
Re: [Tinycc-devel] __asm__ "unknown constraint 't'" issue |
Date: |
Wed, 6 Aug 2014 18:40:19 +0800 |
Hello,
2014-08-06 18:27 GMT+08:00 YX Hao <address@hidden>:
> Hi there,
>
> Here is what I found:
>
> ----------------------------------------
> math.h:341: error: unknown constraint 't'
> ----------------------------------------
>
> And more around this line.
>
> I know little about asm. Can somebody take a look at it?
>
I have a little patch for that, someone please review it.
Thank you.
diff --git a/i386-asm.c b/i386-asm.c
index 664aade..1a24e30 100644
--- a/i386-asm.c
+++ b/i386-asm.c
@@ -1029,6 +1029,9 @@ static inline int constraint_priority(const char *str)
case 'i':
case 'm':
case 'g':
+ case 'f':
+ case 't':
+ case 'u':
pr = 4;
break;
default:
@@ -1211,6 +1214,11 @@ ST_FUNC void asm_compute_constraints(ASMOperand
*operands,
if (!((op->vt->r & (VT_VALMASK | VT_LVAL | VT_SYM)) == VT_CONST))
goto try_next;
break;
+ case 'f':
+ case 't':
+ case 'u':
+ /* float */
+ break;
case 'm':
case 'g':
/* nothing special to do because the operand is already in