[RISCV] Add fshl with immediate tests for Zbt extension. NFC

We should be able to map this to fsri with adjustment of the immediate.
llvm · Nov 4, 2020 · d341523 · d341523
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commit d341523
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diff --git a/llvm/test/CodeGen/RISCV/rv32Zbt.ll b/llvm/test/CodeGen/RISCV/rv32Zbt.ll
@@ -544,3 +544,57 @@ define i64 @fshri_i64(i64 %a, i64 %b) nounwind {
   %1 = tail call i64 @llvm.fshr.i64(i64 %a, i64 %b, i64 5)
   ret i64 %1
 }
+
+define i32 @fshli_i32(i32 %a, i32 %b) nounwind {
+; RV32I-LABEL: fshli_i32:
+; RV32I:       # %bb.0:
+; RV32I-NEXT:    srli a1, a1, 27
+; RV32I-NEXT:    slli a0, a0, 5
+; RV32I-NEXT:    or a0, a0, a1
+; RV32I-NEXT:    ret
+;
+; RV32IB-LABEL: fshli_i32:
+; RV32IB:       # %bb.0:
+; RV32IB-NEXT:    addi a2, zero, 5
+; RV32IB-NEXT:    fsl a0, a0, a2, a1
+; RV32IB-NEXT:    ret
+;
+; RV32IBT-LABEL: fshli_i32:
+; RV32IBT:       # %bb.0:
+; RV32IBT-NEXT:    addi a2, zero, 5
+; RV32IBT-NEXT:    fsl a0, a0, a2, a1
+; RV32IBT-NEXT:    ret
+  %1 = tail call i32 @llvm.fshl.i32(i32 %a, i32 %b, i32 5)
+  ret i32 %1
+}
+
+define i64 @fshli_i64(i64 %a, i64 %b) nounwind {
+; RV32I-LABEL: fshli_i64:
+; RV32I:       # %bb.0:
+; RV32I-NEXT:    srli a2, a3, 27
+; RV32I-NEXT:    slli a3, a0, 5
+; RV32I-NEXT:    or a2, a3, a2
+; RV32I-NEXT:    srli a0, a0, 27
+; RV32I-NEXT:    slli a1, a1, 5
+; RV32I-NEXT:    or a1, a1, a0
+; RV32I-NEXT:    mv a0, a2
+; RV32I-NEXT:    ret
+;
+; RV32IB-LABEL: fshli_i64:
+; RV32IB:       # %bb.0:
+; RV32IB-NEXT:    addi a4, zero, 5
+; RV32IB-NEXT:    fsl a2, a0, a4, a3
+; RV32IB-NEXT:    fsl a1, a1, a4, a0
+; RV32IB-NEXT:    mv a0, a2
+; RV32IB-NEXT:    ret
+;
+; RV32IBT-LABEL: fshli_i64:
+; RV32IBT:       # %bb.0:
+; RV32IBT-NEXT:    addi a4, zero, 5
+; RV32IBT-NEXT:    fsl a2, a0, a4, a3
+; RV32IBT-NEXT:    fsl a1, a1, a4, a0
+; RV32IBT-NEXT:    mv a0, a2
+; RV32IBT-NEXT:    ret
+  %1 = tail call i64 @llvm.fshl.i64(i64 %a, i64 %b, i64 5)
+  ret i64 %1
+}
diff --git a/llvm/test/CodeGen/RISCV/rv64Zbt.ll b/llvm/test/CodeGen/RISCV/rv64Zbt.ll
@@ -250,3 +250,54 @@ define i64 @fshri_i64(i64 %a, i64 %b) nounwind {
   %1 = tail call i64 @llvm.fshr.i64(i64 %a, i64 %b, i64 5)
   ret i64 %1
 }
+
+define signext i32 @fshli_i32(i32 signext %a, i32 signext %b) nounwind {
+; RV64I-LABEL: fshli_i32:
+; RV64I:       # %bb.0:
+; RV64I-NEXT:    srliw a1, a1, 27
+; RV64I-NEXT:    slli a0, a0, 5
+; RV64I-NEXT:    or a0, a0, a1
+; RV64I-NEXT:    sext.w a0, a0
+; RV64I-NEXT:    ret
+;
+; RV64IB-LABEL: fshli_i32:
+; RV64IB:       # %bb.0:
+; RV64IB-NEXT:    slli a1, a1, 32
+; RV64IB-NEXT:    addi a2, zero, 5
+; RV64IB-NEXT:    fsl a0, a0, a2, a1
+; RV64IB-NEXT:    sext.w a0, a0
+; RV64IB-NEXT:    ret
+;
+; RV64IBT-LABEL: fshli_i32:
+; RV64IBT:       # %bb.0:
+; RV64IBT-NEXT:    slli a1, a1, 32
+; RV64IBT-NEXT:    addi a2, zero, 5
+; RV64IBT-NEXT:    fsl a0, a0, a2, a1
+; RV64IBT-NEXT:    sext.w a0, a0
+; RV64IBT-NEXT:    ret
+  %1 = tail call i32 @llvm.fshl.i32(i32 %a, i32 %b, i32 5)
+  ret i32 %1
+}
+
+define i64 @fshli_i64(i64 %a, i64 %b) nounwind {
+; RV64I-LABEL: fshli_i64:
+; RV64I:       # %bb.0:
+; RV64I-NEXT:    srli a1, a1, 59
+; RV64I-NEXT:    slli a0, a0, 5
+; RV64I-NEXT:    or a0, a0, a1
+; RV64I-NEXT:    ret
+;
+; RV64IB-LABEL: fshli_i64:
+; RV64IB:       # %bb.0:
+; RV64IB-NEXT:    addi a2, zero, 5
+; RV64IB-NEXT:    fsl a0, a0, a2, a1
+; RV64IB-NEXT:    ret
+;
+; RV64IBT-LABEL: fshli_i64:
+; RV64IBT:       # %bb.0:
+; RV64IBT-NEXT:    addi a2, zero, 5
+; RV64IBT-NEXT:    fsl a0, a0, a2, a1
+; RV64IBT-NEXT:    ret
+  %1 = tail call i64 @llvm.fshl.i64(i64 %a, i64 %b, i64 5)
+  ret i64 %1
+}