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.
83 lines
2.6 KiB
LLVM
83 lines
2.6 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 2
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; RUN: llc -mtriple riscv64 < %s | FileCheck %s
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declare signext i32 @func1(ptr noundef) local_unnamed_addr
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declare signext i32 @func2(ptr noundef) local_unnamed_addr
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declare signext i32 @func3(ptr noundef) local_unnamed_addr
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declare signext i32 @func4(ptr noundef) local_unnamed_addr
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declare signext i32 @func5(ptr noundef) local_unnamed_addr
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declare signext i32 @default_func(ptr noundef) local_unnamed_addr
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define dso_local signext i32 @test_shrinkwrap_jump_table(ptr noundef %m) local_unnamed_addr {
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; CHECK-LABEL: test_shrinkwrap_jump_table:
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; CHECK: # %bb.0: # %entry
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; CHECK-NEXT: lw a1, 0(a0)
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; CHECK-NEXT: addi a1, a1, -1
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; CHECK-NEXT: li a2, 4
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; CHECK-NEXT: bltu a2, a1, .LBB0_7
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; CHECK-NEXT: # %bb.1: # %entry
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; CHECK-NEXT: slli a1, a1, 2
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; CHECK-NEXT: lui a2, %hi(.LJTI0_0)
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; CHECK-NEXT: addi a2, a2, %lo(.LJTI0_0)
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; CHECK-NEXT: add a1, a1, a2
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; CHECK-NEXT: lw a1, 0(a1)
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; CHECK-NEXT: jr a1
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; CHECK-NEXT: .LBB0_2: # %sw.bb
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; CHECK-NEXT: tail func1
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; CHECK-NEXT: .LBB0_3: # %sw.bb7
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; CHECK-NEXT: tail func5
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; CHECK-NEXT: .LBB0_4: # %sw.bb3
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; CHECK-NEXT: tail func3
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; CHECK-NEXT: .LBB0_5: # %sw.bb5
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; CHECK-NEXT: tail func4
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; CHECK-NEXT: .LBB0_6: # %sw.bb1
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; CHECK-NEXT: tail func2
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; CHECK-NEXT: .LBB0_7: # %sw.default
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; CHECK-NEXT: addi sp, sp, -16
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; CHECK-NEXT: .cfi_def_cfa_offset 16
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; CHECK-NEXT: sd ra, 8(sp) # 8-byte Folded Spill
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; CHECK-NEXT: .cfi_offset ra, -8
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; CHECK-NEXT: call default_func
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; CHECK-NEXT: li a0, 0
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; CHECK-NEXT: ld ra, 8(sp) # 8-byte Folded Reload
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; CHECK-NEXT: addi sp, sp, 16
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; CHECK-NEXT: ret
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entry:
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%0 = load i32, ptr %m, align 4
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switch i32 %0, label %sw.default [
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i32 1, label %sw.bb
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i32 2, label %sw.bb1
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i32 3, label %sw.bb3
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i32 4, label %sw.bb5
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i32 5, label %sw.bb7
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]
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sw.bb:
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%call = tail call signext i32 @func1(ptr noundef nonnull %m)
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br label %sw.epilog
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sw.bb1:
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%call2 = tail call signext i32 @func2(ptr noundef nonnull %m)
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br label %sw.epilog
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sw.bb3:
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%call4 = tail call signext i32 @func3(ptr noundef nonnull %m)
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br label %sw.epilog
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sw.bb5:
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%call6 = tail call signext i32 @func4(ptr noundef nonnull %m)
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br label %sw.epilog
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sw.bb7:
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%call8 = tail call signext i32 @func5(ptr noundef nonnull %m)
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br label %sw.epilog
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sw.default:
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%call9 = tail call signext i32 @default_func(ptr noundef nonnull %m)
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br label %sw.epilog
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sw.epilog:
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%ret.0 = phi i32 [ 0, %sw.default ], [ %call8, %sw.bb7 ], [ %call6, %sw.bb5 ], [ %call4, %sw.bb3 ], [ %call2, %sw.bb1 ], [ %call, %sw.bb ]
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ret i32 %ret.0
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}
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