eabaee0c59
R_RISCV_CALL/R_RISCV_CALL_PLT distinction is not necessary and R_RISCV_CALL has been deprecated. Since https://reviews.llvm.org/D132530 `call foo` assembles to R_RISCV_CALL_PLT. The `@plt` suffix is not useful and can be removed now (matching AArch64 and PowerPC). GNU assembler assembles `call foo` to RISCV_CALL_PLT since 2022-09 (70f35d72ef04cd23771875c1661c9975044a749c). Without this patch, unconditionally changing MO_CALL to MO_PLT could create `jump .L1@plt, a0`, which is invalid in LLVM integrated assembler and GNU assembler.
43 lines
1.2 KiB
LLVM
43 lines
1.2 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
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; RUN: llc -mtriple=riscv32 -verify-machineinstrs < %s \
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; RUN: | FileCheck -check-prefix=RV32I %s
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%struct.Foo = type { i32, i32, i32, i16, i8 }
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@foo = global %struct.Foo { i32 1, i32 2, i32 3, i16 4, i8 5 }, align 4
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define i32 @callee(ptr byval(%struct.Foo) %f) nounwind {
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; RV32I-LABEL: callee:
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; RV32I: # %bb.0: # %entry
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; RV32I-NEXT: lw a0, 0(a0)
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; RV32I-NEXT: ret
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entry:
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%0 = load i32, ptr %f, align 4
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ret i32 %0
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}
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define void @caller() nounwind {
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; RV32I-LABEL: caller:
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; RV32I: # %bb.0: # %entry
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; RV32I-NEXT: addi sp, sp, -32
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; RV32I-NEXT: sw ra, 28(sp) # 4-byte Folded Spill
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; RV32I-NEXT: lui a0, %hi(foo)
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; RV32I-NEXT: lw a1, %lo(foo)(a0)
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; RV32I-NEXT: sw a1, 12(sp)
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; RV32I-NEXT: addi a0, a0, %lo(foo)
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; RV32I-NEXT: lw a1, 12(a0)
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; RV32I-NEXT: sw a1, 24(sp)
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; RV32I-NEXT: lw a1, 8(a0)
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; RV32I-NEXT: sw a1, 20(sp)
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; RV32I-NEXT: lw a0, 4(a0)
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; RV32I-NEXT: sw a0, 16(sp)
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; RV32I-NEXT: addi a0, sp, 12
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; RV32I-NEXT: call callee
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; RV32I-NEXT: lw ra, 28(sp) # 4-byte Folded Reload
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; RV32I-NEXT: addi sp, sp, 32
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; RV32I-NEXT: ret
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entry:
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%call = call i32 @callee(ptr byval(%struct.Foo) @foo)
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ret void
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}
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