[CodeGen] Emit more precise AssertZext/AssertSext nodes.
This is marginally helpful for removing redundant extensions, and the
code is easier to read, so it seems like an all-around win. In the new
test i8-phi-ext.ll, we used to emit an AssertSext i8; now we emit an
AssertZext i2, which allows the extension of the return value to be
eliminated.
Differential Revision: https://reviews.llvm.org/D49004
llvm-svn: 336868
diff --git a/llvm/test/CodeGen/AMDGPU/frame-index-elimination.ll b/llvm/test/CodeGen/AMDGPU/frame-index-elimination.ll
index 8fdcfe5..44a6918 100644
--- a/llvm/test/CodeGen/AMDGPU/frame-index-elimination.ll
+++ b/llvm/test/CodeGen/AMDGPU/frame-index-elimination.ll
@@ -140,7 +140,7 @@
; GCN: s_and_saveexec_b64
; CI: v_add_i32_e32 v0, vcc, 4, [[ADD]]
-; CI: buffer_load_dword v1, v0, s[0:3], s4 offen{{$}}
+; CI: buffer_load_dword v1, v1, s[0:3], s4 offen offset:4{{$}}
; GFX9: v_add_u32_e32 v0, 4, [[ADD]]
; GFX9: buffer_load_dword v1, v{{[0-9]+}}, s[0:3], s4 offen offset:4{{$}}