R600/SI: Implement areLoadsFromSameBasePtr
This currently has a noticable effect on the kernel argument loads.
LDS and global loads are more problematic, I think because of how copies
are currently inserted to ensure that the address is a VGPR.
llvm-svn: 214942
diff --git a/llvm/test/CodeGen/R600/trunc.ll b/llvm/test/CodeGen/R600/trunc.ll
index 31cdfcd..4a278fb 100644
--- a/llvm/test/CodeGen/R600/trunc.ll
+++ b/llvm/test/CodeGen/R600/trunc.ll
@@ -30,10 +30,11 @@
}
; SI-LABEL: @trunc_shl_i64:
-; SI: S_LOAD_DWORDX2 s{{\[}}[[LO_SREG:[0-9]+]]:{{[0-9]+\]}},
-; SI: S_ADD_I32 s[[LO_ADD:[0-9]+]], s[[LO_SREG]],
-; SI: S_LSHL_B64 s{{\[}}[[LO_SREG2:[0-9]+]]:{{[0-9]+\]}}, s{{\[}}[[LO_ADD]]:{{[0-9]+\]}}, 2
-; SI: V_MOV_B32_e32 v[[LO_VREG:[0-9]+]], s[[LO_SREG2]]
+; SI: S_LOAD_DWORDX2 s{{\[}}[[LO_SREG:[0-9]+]]:{{[0-9]+\]}}, s{{\[[0-9]+:[0-9]+\]}}, 0xd
+; SI: S_ADD_I32 s[[LO_SREG2:[0-9]+]], s[[LO_SREG]],
+; SI: S_ADDC_U32
+; SI: S_LSHL_B64 s{{\[}}[[LO_SHL:[0-9]+]]:{{[0-9]+\]}}, s{{\[}}[[LO_SREG2]]:{{[0-9]+\]}}, 2
+; SI: V_MOV_B32_e32 v[[LO_VREG:[0-9]+]], s[[LO_SHL]]
; SI: BUFFER_STORE_DWORD v[[LO_VREG]],
define void @trunc_shl_i64(i64 addrspace(1)* %out2, i32 addrspace(1)* %out, i64 %a) {
%aa = add i64 %a, 234 ; Prevent shrinking store.