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authorupstream source tree <ports@midipix.org>2015-03-15 20:14:05 -0400
committerupstream source tree <ports@midipix.org>2015-03-15 20:14:05 -0400
commit554fd8c5195424bdbcabf5de30fdc183aba391bd (patch)
tree976dc5ab7fddf506dadce60ae936f43f58787092 /gcc/testsuite/gcc.c-torture/compile/pr35869.c
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Diffstat (limited to 'gcc/testsuite/gcc.c-torture/compile/pr35869.c')
-rw-r--r--gcc/testsuite/gcc.c-torture/compile/pr35869.c47
1 files changed, 47 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.c-torture/compile/pr35869.c b/gcc/testsuite/gcc.c-torture/compile/pr35869.c
new file mode 100644
index 000000000..e83c0e86b
--- /dev/null
+++ b/gcc/testsuite/gcc.c-torture/compile/pr35869.c
@@ -0,0 +1,47 @@
+struct texture_stage_op
+{
+ unsigned int carg1, carg2, carg0;
+ unsigned int aarg1, aarg2, aarg0;
+ unsigned int dst;
+};
+
+static const char *debug_register(unsigned int reg) {
+ switch(reg) {
+ case 0x8921: return "GL_REG_0_ATI";
+ case 0x8923: return "GL_REG_2_ATI";
+ case 0x0: return "GL_ZERO";
+ case 0x1: return "GL_ONE";
+ default: return "Unknown register\n";
+ }
+}
+
+static unsigned int find_tmpreg(struct texture_stage_op op[8]) {
+ int i;
+ int tex_used[8];
+
+ for(i = 0; i < 8; i++) {
+ if(op[i].carg1 == 0x00000002 ) {
+ tex_used[i] = 1;
+ }
+ }
+
+ for(i = 1; i < 6; i++) {
+ if(!tex_used[i]) {
+ return 0x8921 + i;
+ }
+ }
+ return 0;
+}
+
+extern f(const char*);
+
+void g() {
+ struct texture_stage_op op[8];
+ unsigned int tmparg = find_tmpreg(op);
+ unsigned int dstreg;
+
+ if(tmparg == 0x0) return;
+ dstreg = tmparg;
+ f(debug_register(dstreg));
+ return;
+}