diff test/CodeGen/AMDGPU/vtx-fetch-branch.ll @ 95:afa8332a0e37 LLVM3.8

LLVM 3.8
author Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
date Tue, 13 Oct 2015 17:48:58 +0900
parents
children 803732b1fca8
line wrap: on
line diff
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/test/CodeGen/AMDGPU/vtx-fetch-branch.ll	Tue Oct 13 17:48:58 2015 +0900
@@ -0,0 +1,29 @@
+; RUN: llc -march=r600 -mcpu=redwood %s -o - | FileCheck %s
+
+; This tests for a bug where vertex fetch clauses right before an ENDIF
+; instruction where being emitted after the ENDIF.  We were using ALU_POP_AFTER
+; for the ALU clause before the vetex fetch instead of emitting a POP instruction
+; after the fetch clause.
+
+
+; CHECK-LABEL: {{^}}test:
+; CHECK-NOT: ALU_POP_AFTER
+; CHECK: TEX
+; CHECK-NEXT: POP
+define void @test(i32 addrspace(1)* %out, i32 addrspace(1)* %in, i32 %cond) {
+entry:
+  %0 = icmp eq i32 %cond, 0
+  br i1 %0, label %endif, label %if
+
+if:
+  %1 = load i32, i32 addrspace(1)* %in
+  br label %endif
+
+endif:
+  %x = phi i32 [ %1, %if], [ 0, %entry]
+  store i32 %x, i32 addrspace(1)* %out
+  br label %done
+
+done:
+  ret void
+}