Index: llvm/lib/Target/RISCV/MCTargetDesc/RISCVAsmBackend.cpp
===================================================================
--- llvm/lib/Target/RISCV/MCTargetDesc/RISCVAsmBackend.cpp
+++ llvm/lib/Target/RISCV/MCTargetDesc/RISCVAsmBackend.cpp
@@ -53,11 +53,14 @@
     case RISCV::fixup_riscv_got_hi20:
       ShouldForce = true;
       break;
-    case RISCV::fixup_riscv_pcrel_hi20:
-      ShouldForce = T->getValue()->findAssociatedFragment() !=
-                    Fixup.getValue()->findAssociatedFragment();
+    case RISCV::fixup_riscv_pcrel_hi20: {
+      MCFragment *TFragment = T->getValue()->findAssociatedFragment();
+      MCFragment *FixupFragment = Fixup.getValue()->findAssociatedFragment();
+      ShouldForce = !TFragment || !FixupFragment ||
+                    TFragment->getParent() != FixupFragment->getParent();
       break;
     }
+    }
     break;
   }
 
Index: llvm/test/MC/RISCV/pcrel-fixups.s
===================================================================
--- /dev/null
+++ llvm/test/MC/RISCV/pcrel-fixups.s
@@ -0,0 +1,44 @@
+# RUN: llvm-mc -triple riscv32 -mattr=-relax -filetype obj %s \
+# RUN:    | llvm-objdump  -d -r - | FileCheck --check-prefix NORELAX %s
+# RUN: llvm-mc -triple riscv32 -mattr=+relax -filetype obj %s \
+# RUN:    | llvm-objdump  -d -r - | FileCheck --check-prefix RELAX %s
+# RUN: llvm-mc -triple riscv64 -mattr=-relax -filetype obj %s \
+# RUN:    | llvm-objdump  -d -r - | FileCheck --check-prefix NORELAX %s
+# RUN: llvm-mc -triple riscv64 -mattr=+relax -filetype obj %s \
+# RUN:    | llvm-objdump  -d -r - | FileCheck --check-prefix RELAX %s
+
+# Fixups for %pcrel_hi / %pcrel_lo can be evaluated within a section,
+# regardless of the fragment containing the target address.
+
+function:
+.Lpcrel_label1:
+	auipc	a0, %pcrel_hi(other_function)
+	addi	a1, a0, %pcrel_lo(.Lpcrel_label1)
+# NORELAX: auipc	a0, 0
+# NORELAX: addi	a1, a0, 16
+
+# RELAX: auipc	a0, 0
+# RELAX: R_RISCV_PCREL_HI20	other_function
+# RELAX: R_RISCV_RELAX	*ABS*
+# RELAX: mv	a1, a0
+# RELAX: R_RISCV_PCREL_LO12_I	.Lpcrel_label1
+# RELAX: R_RISCV_RELAX	*ABS*
+
+	.p2align	2   # Cause a new fragment be emitted here
+.Lpcrel_label2:
+	auipc	a0, %pcrel_hi(other_function)
+	addi	a1, a0, %pcrel_lo(.Lpcrel_label2)
+# NORELAX: auipc	a0, 0
+# NORELAX: addi	a1, a0, 8
+
+# RELAX: auipc	a0, 0
+# RELAX: R_RISCV_PCREL_HI20	other_function
+# RELAX: R_RISCV_RELAX	*ABS*
+# RELAX: mv	a1, a0
+# RELAX: R_RISCV_PCREL_LO12_I	.Lpcrel_label2
+# RELAX: R_RISCV_RELAX	*ABS*
+
+	.type	other_function,@function
+other_function:
+	ret
+