Vendor import of llvm release_34 branch r197841 (effectively, 3.4 RC3):vendor/llvm/llvm-release_34-r197841

https://llvm.org/svn/llvm-project/llvm/branches/release_34@197841

1 files changed, 30 insertions, 0 deletions

diff --git a/test/CodeGen/R600/trunc.ll b/test/CodeGen/R600/trunc.ll
new file mode 100644
index 000000000000..0bd320ad9ceb
--- /dev/null
+++ b/test/CodeGen/R600/trunc.ll
@@ -0,0 +1,30 @@
+; RUN: llc -march=r600 -mcpu=SI -verify-machineinstrs< %s | FileCheck -check-prefix=SI %s
+; RUN: llc -march=r600 -mcpu=cypress < %s | FileCheck -check-prefix=EG %s
+
+define void @trunc_i64_to_i32_store(i32 addrspace(1)* %out, i64 %in) {
+; SI-LABEL: @trunc_i64_to_i32_store
+; SI: S_LOAD_DWORD s0, s[0:1], 11
+; SI: V_MOV_B32_e32 v0, s0
+; SI: BUFFER_STORE_DWORD v0
+
+; EG-LABEL: @trunc_i64_to_i32_store
+; EG: MEM_RAT_CACHELESS STORE_RAW T0.X, T1.X, 1
+; EG: LSHR
+; EG-NEXT: 2(
+
+  %result = trunc i64 %in to i32 store i32 %result, i32 addrspace(1)* %out, align 4
+  ret void
+}
+
+; SI-LABEL: @trunc_shl_i64:
+; SI: S_LOAD_DWORDX2
+; SI: S_LOAD_DWORDX2 [[SREG:s\[[0-9]+:[0-9]+\]]]
+; SI: S_LSHL_B64 s{{\[}}[[LO_SREG:[0-9]+]]:{{[0-9]+\]}}, [[SREG]], 2
+; SI: MOV_B32_e32 v[[LO_VREG:[0-9]+]], s[[LO_SREG]]
+; SI: BUFFER_STORE_DWORD v[[LO_VREG]],
+define void @trunc_shl_i64(i32 addrspace(1)* %out, i64 %a) {
+  %b = shl i64 %a, 2
+  %result = trunc i64 %b to i32
+  store i32 %result, i32 addrspace(1)* %out, align 4
+  ret void
+}