From b934d999d98d0512173de2d9ab3a2e97c5fda015 Mon Sep 17 00:00:00 2001
From: Matt Godbolt <matt@godbolt.org>
Date: Mon, 26 Apr 2021 18:19:17 -0500
Subject: Keep go asm in UPPERCASE. See #2620

---
 lib/compilers/golang.js | 23 ++++++++---------------
 1 file changed, 8 insertions(+), 15 deletions(-)

(limited to 'lib/compilers/golang.js')

diff --git a/lib/compilers/golang.js b/lib/compilers/golang.js
index 73a64aac7..bbcba3195 100644
--- a/lib/compilers/golang.js
+++ b/lib/compilers/golang.js
@@ -31,21 +31,15 @@ import { ClangParser } from './argument-parsers';
 
 // Each arch has a list of jump instructions in
 // Go source src/cmd/asm/internal/arch.
-const jumpPrefixes = [
-    'j',
-    'b',
-
-    // arm
-    'cb',
-    'tb',
-
-    // s390x
-    'cmpb',
-    'cmpub',
-];
+// x86 -> j, b
+// arm -> cb, tb
+// s390x -> cmpb, cmpub
+const jumpRe = /^(j|b|cb|tb|cmpb|cmpub).*/i;
 
 export class GolangCompiler extends BaseCompiler {
-    static get key() { return 'golang'; }
+    static get key() {
+        return 'golang';
+    }
 
     convertNewGoL(code) {
         const re = /^\s+(0[Xx]?[\dA-Za-z]+)?\s?(\d+)\s*\(([^:]+):(\d+)\)\s*([A-Z]+)(.*)/;
@@ -129,7 +123,6 @@ export class GolangCompiler extends BaseCompiler {
                 prevLine = lineMatch;
             }
 
-            ins = ins.toLowerCase();
             args = this.replaceJump(func, funcCollisions[func], ins, args, usedLabels);
             res.push(`\t${ins}${args}`);
             return res;
@@ -155,7 +148,7 @@ export class GolangCompiler extends BaseCompiler {
         }
 
         // Check instruction has a jump prefix
-        if (_.any(jumpPrefixes, prefix => ins.startsWith(prefix))) {
+        if (ins.match(jumpRe)) {
             let label = `${func}_pc${match[2]}`;
             if (collisions > 0) {
                 label += `_${collisions}`;
-- 
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