Don't remove SPIR-V blocks before codegen.

A removed block releases its instructions, so Module::idToInstruction suddenly contains dangling references. The original motivation for block removal was to skip some unreachable blocks, but that's already achieved by InReadableOrder.cpp. Also updated stale comments.
2016-01-19 21:13:38 -05:00
parent 33782795d9
commit ed55bcd9f8
17 changed files with 1233 additions and 1252 deletions
--- a/Test/baseResults/spv.for-notest.vert.out
+++ b/Test/baseResults/spv.for-notest.vert.out
@@ -50,4 +50,6 @@ Linked vertex stage:
              19:      6(int) IAdd 17 18
                              Store 8(i) 19
                              Branch 10
+              12:             Label
+                              Return
                              FunctionEnd