[RISCV] Expand function call to "call" pseudoinstruction

To do this:
1. Change GlobalAddress SDNode to TargetGlobalAddress to avoid legalizer
   split the symbol.

2. Change ExternalSymbol SDNode to TargetExternalSymbol to avoid legalizer
   split the symbol.

3. Let PseudoCALL match direct call with target operand TargetGlobalAddress
   and TargetExternalSymbol.

Differential Revision: https://reviews.llvm.org/D44885

llvm-svn: 330827
diff --git a/llvm/test/CodeGen/RISCV/double-previous-failure.ll b/llvm/test/CodeGen/RISCV/double-previous-failure.ll
index 3884049..3a07e5d 100644
--- a/llvm/test/CodeGen/RISCV/double-previous-failure.ll
+++ b/llvm/test/CodeGen/RISCV/double-previous-failure.ll
@@ -17,21 +17,19 @@
 ; RV32IFD:       # %bb.0: # %entry
 ; RV32IFD-NEXT:    addi sp, sp, -16
 ; RV32IFD-NEXT:    sw ra, 12(sp)
-; RV32IFD-NEXT:    lui a0, %hi(test)
-; RV32IFD-NEXT:    addi a2, a0, %lo(test)
 ; RV32IFD-NEXT:    lui a0, %hi(.LCPI1_0)
 ; RV32IFD-NEXT:    addi a0, a0, %lo(.LCPI1_0)
 ; RV32IFD-NEXT:    fld ft0, 0(a0)
 ; RV32IFD-NEXT:    fsd ft0, 0(sp)
 ; RV32IFD-NEXT:    lw a0, 0(sp)
 ; RV32IFD-NEXT:    lw a1, 4(sp)
-; RV32IFD-NEXT:    jalr a2
+; RV32IFD-NEXT:    call test
+; RV32IFD-NEXT:    lui a2, %hi(.LCPI1_1)
+; RV32IFD-NEXT:    addi a2, a2, %lo(.LCPI1_1)
+; RV32IFD-NEXT:    fld ft1, 0(a2)
 ; RV32IFD-NEXT:    sw a0, 0(sp)
 ; RV32IFD-NEXT:    sw a1, 4(sp)
 ; RV32IFD-NEXT:    fld ft0, 0(sp)
-; RV32IFD-NEXT:    lui a0, %hi(.LCPI1_1)
-; RV32IFD-NEXT:    addi a0, a0, %lo(.LCPI1_1)
-; RV32IFD-NEXT:    fld ft1, 0(a0)
 ; RV32IFD-NEXT:    flt.d a0, ft0, ft1
 ; RV32IFD-NEXT:    bnez a0, .LBB1_3
 ; RV32IFD-NEXT:  # %bb.1: # %entry
@@ -42,14 +40,10 @@
 ; RV32IFD-NEXT:    xori a0, a0, 1
 ; RV32IFD-NEXT:    beqz a0, .LBB1_3
 ; RV32IFD-NEXT:  # %bb.2: # %if.end
-; RV32IFD-NEXT:    lui a0, %hi(exit)
-; RV32IFD-NEXT:    addi a1, a0, %lo(exit)
 ; RV32IFD-NEXT:    mv a0, zero
-; RV32IFD-NEXT:    jalr a1
+; RV32IFD-NEXT:    call exit
 ; RV32IFD-NEXT:  .LBB1_3: # %if.then
-; RV32IFD-NEXT:    lui a0, %hi(abort)
-; RV32IFD-NEXT:    addi a0, a0, %lo(abort)
-; RV32IFD-NEXT:    jalr a0
+; RV32IFD-NEXT:    call abort
 entry:
   %call = call double @test(double 2.000000e+00)
   %cmp = fcmp olt double %call, 2.400000e-01