From: Eric Anholt <eric@anholt.net>
Date: Wed, 18 Aug 2010 02:51:00 +0000 (-0700)
Subject: i965: Throw a link error when we see a "return" in main().
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=1cdef8e90a33d982d8ce5ae73eb224e078a2054b;p=mesa.git

i965: Throw a link error when we see a "return" in main().

We'll need to use the HALT instruction to do this right, like returns
from other functions.
---

diff --git a/src/mesa/drivers/dri/i965/brw_program.c b/src/mesa/drivers/dri/i965/brw_program.c
index c6d11fed064..1cdc8c6411b 100644
--- a/src/mesa/drivers/dri/i965/brw_program.c
+++ b/src/mesa/drivers/dri/i965/brw_program.c
@@ -175,6 +175,14 @@ static GLboolean brwProgramStringNotify( GLcontext *ctx,
 		      "the end of the function to work around it.\n");
 	 return GL_FALSE;
       }
+
+      if (prog->Instructions[i].Opcode == OPCODE_RET) {
+	 shader_error(ctx, prog,
+		      "i965 driver doesn't yet support \"return\" "
+		      "from main().\n");
+	 return GL_FALSE;
+      }
+
       if (prog->Instructions[i].DstReg.RelAddr &&
 	  prog->Instructions[i].DstReg.File == PROGRAM_INPUT) {
 	 shader_error(ctx, prog,