From: Wolfgang Bumiller <wry.git@bumiller.com>
Date: Sun, 15 Sep 2019 08:06:53 +0000 (+0200)
Subject: introduce another vinstr temp
X-Git-Tag: xonotic-v0.8.5~15
X-Git-Url: https://git.rm.cloudns.org/?a=commitdiff_plain;h=031f827da5457ed969bbf66e520105f9600a1229;p=xonotic%2Fgmqcc.git

introduce another vinstr temp

Some vinstrs are currently broken when using peephole
optimization as they appear as writing to a temporary ssa
output before being stored into their real destination,
causing the store to be optimized out, but the generated
code relies on having the destination as another temporary
value available.

Let's just add a 2nd temp to be used in those cases.

Signed-off-by: Wolfgang Bumiller <wry.git@bumiller.com>
---

diff --git a/ir.h b/ir.h
index 42f6ce5..c81d1a2 100644
--- a/ir.h
+++ b/ir.h
@@ -249,7 +249,7 @@ ir_block*       ir_function_create_block(lex_ctx_t ctx, ir_function*, const char
 
 /* builder */
 #define IR_HT_SIZE          1024
-#define IR_MAX_VINSTR_TEMPS 1
+#define IR_MAX_VINSTR_TEMPS 2
 
 struct ir_builder {
     ir_builder(const std::string& modulename);