diff --git a/src/compiler/nir/nir_opt_intrinsics.c b/src/compiler/nir/nir_opt_intrinsics.c
index e1927c6ae45..6b97c47e17c 100644
--- a/src/compiler/nir/nir_opt_intrinsics.c
+++ b/src/compiler/nir/nir_opt_intrinsics.c
@@ -214,7 +214,7 @@ try_opt_quad_vote(nir_builder *b, nir_alu_instr *alu, bool block_has_discard)
             lane = (nir_intrinsic_swizzle_mask(quad_broadcasts[i]) >> (j * 2)) & 0x3;
             break;
          default:
-            unreachable();
+            unreachable("");
          }
          lanes_read |= (1 << lane) << (j * 4);
       }
diff --git a/src/gallium/drivers/freedreno/a4xx/fd4_emit.c b/src/gallium/drivers/freedreno/a4xx/fd4_emit.c
index 2afc1895fcd..d53124258e7 100644
--- a/src/gallium/drivers/freedreno/a4xx/fd4_emit.c
+++ b/src/gallium/drivers/freedreno/a4xx/fd4_emit.c
@@ -303,7 +303,7 @@ emit_textures(struct fd_context *ctx, struct fd_ringbuffer *ring,
                break;
 
             default:
-               unreachable();
+               unreachable("");
             }
 
             texconst0 =
diff --git a/src/gallium/drivers/r300/compiler/r3xx_vertprog.c b/src/gallium/drivers/r300/compiler/r3xx_vertprog.c
index ff954b4e815..d817278aa59 100644
--- a/src/gallium/drivers/r300/compiler/r3xx_vertprog.c
+++ b/src/gallium/drivers/r300/compiler/r3xx_vertprog.c
@@ -212,7 +212,7 @@ ei_math1_select(struct r300_vertex_program_code *vp,
    case RC_MATH_DX: hw_opcode = hw_opcode_dx; break;
    case RC_MATH_FF: hw_opcode = hw_opcode_ff; break;
    default:
-      unreachable();
+      unreachable("");
    }
    ei_math1(vp, hw_opcode, vpi, inst);
 }
diff --git a/src/gallium/drivers/r300/compiler/radeon_program_alu.c b/src/gallium/drivers/r300/compiler/radeon_program_alu.c
index 2ce2acf9161..8ffa9f526b3 100644
--- a/src/gallium/drivers/r300/compiler/radeon_program_alu.c
+++ b/src/gallium/drivers/r300/compiler/radeon_program_alu.c
@@ -156,10 +156,10 @@ radeonTransformALU(struct radeon_compiler *c, struct rc_instruction *inst, void
    case RC_OPCODE_DP2: transform_DP2(c, inst); return 1;
    case RC_OPCODE_KILP: transform_KILP(c, inst); return 1;
    case RC_OPCODE_RSQ: transform_RSQ(c, inst); return 1;
-   case RC_OPCODE_SEQ: unreachable();
-   case RC_OPCODE_SGE: unreachable();
-   case RC_OPCODE_SLT: unreachable();
-   case RC_OPCODE_SNE: unreachable();
+   case RC_OPCODE_SEQ: unreachable("");
+   case RC_OPCODE_SGE: unreachable("");
+   case RC_OPCODE_SLT: unreachable("");
+   case RC_OPCODE_SNE: unreachable("");
    default: return 0;
    }
 }
@@ -172,7 +172,7 @@ transform_r300_vertex_CMP(struct radeon_compiler *c, struct rc_instruction *inst
    if (c->is_r500 && !rc_inst_has_three_diff_temp_srcs(inst))
       return;
 
-   unreachable();
+   unreachable("");
 }
 
 static void
diff --git a/src/gallium/drivers/r300/r300_tgsi_to_rc.c b/src/gallium/drivers/r300/r300_tgsi_to_rc.c
index 76930d4588a..ef3e5378cb2 100644
--- a/src/gallium/drivers/r300/r300_tgsi_to_rc.c
+++ b/src/gallium/drivers/r300/r300_tgsi_to_rc.c
@@ -166,7 +166,7 @@ static void transform_texture(struct rc_instruction * dst, struct tgsi_instructi
             dst->U.I.TexSrcTarget = RC_TEXTURE_2D_ARRAY;
             break;
         default:
-            unreachable();
+            unreachable("");
             break;
     }
     dst->U.I.TexSwizzle = RC_SWIZZLE_XYZW;
diff --git a/src/gallium/drivers/r300/r300_vs.c b/src/gallium/drivers/r300/r300_vs.c
index 4c0d8adda62..4c0e18d7a71 100644
--- a/src/gallium/drivers/r300/r300_vs.c
+++ b/src/gallium/drivers/r300/r300_vs.c
@@ -70,7 +70,7 @@ static void r300_shader_read_vs_outputs(
                 assert(index == 0);
                 /* Draw does clip vertex for us. */
                 if (r300->screen->caps.has_tcl) {
-                    unreachable();
+                    unreachable("");
                 }
                 break;
 
diff --git a/src/imagination/pco/pco_builder.h b/src/imagination/pco/pco_builder.h
index 84764b07464..f27b4406faf 100644
--- a/src/imagination/pco/pco_builder.h
+++ b/src/imagination/pco/pco_builder.h
@@ -210,7 +210,7 @@ static inline pco_func *pco_cursor_func(pco_cursor cursor)
       break;
    }
 
-   unreachable();
+   unreachable("");
 }
 
 /**
@@ -238,7 +238,7 @@ static inline pco_cf_node *pco_cursor_cf_node(pco_cursor cursor)
       break;
    }
 
-   unreachable();
+   unreachable("");
 }
 
 /**
@@ -274,7 +274,7 @@ static inline pco_block *pco_cursor_block(pco_cursor cursor)
       break;
    }
 
-   unreachable();
+   unreachable("");
 }
 
 /**
@@ -312,7 +312,7 @@ static inline pco_instr *pco_cursor_instr(pco_cursor cursor)
       break;
    }
 
-   unreachable();
+   unreachable("");
 }
 
 /**
@@ -355,7 +355,7 @@ static inline pco_igrp *pco_cursor_igrp(pco_cursor cursor)
       break;
    }
 
-   unreachable();
+   unreachable("");
 }
 
 /* Builder functions. */
diff --git a/src/imagination/pco/pco_common.h.py b/src/imagination/pco/pco_common.h.py
index f97a718efa6..684f7cec0fb 100644
--- a/src/imagination/pco/pco_common.h.py
+++ b/src/imagination/pco/pco_common.h.py
@@ -49,7 +49,7 @@ const char *${enum.name}_str(uint64_t val) {
       break;
    }
 
-   unreachable();
+   unreachable("");
 }
 
 % endfor
diff --git a/src/imagination/pco/pco_group_instrs.c b/src/imagination/pco/pco_group_instrs.c
index 4ff575afeaa..190fa29fc83 100644
--- a/src/imagination/pco/pco_group_instrs.c
+++ b/src/imagination/pco/pco_group_instrs.c
@@ -48,7 +48,7 @@ static inline unsigned calc_da(pco_igrp *igrp)
       break;
 
    default:
-      unreachable();
+      unreachable("");
    }
 
    return da;
@@ -102,7 +102,7 @@ static inline void calc_lengths(pco_igrp *igrp, unsigned *offset_bytes)
          break;
 
       default:
-         unreachable();
+         unreachable("");
       }
 
       total_length += igrp->enc.len.instrs[phase];
diff --git a/src/imagination/pco/pco_internal.h b/src/imagination/pco/pco_internal.h
index 6bbe48ba70b..7a5cedac75d 100644
--- a/src/imagination/pco/pco_internal.h
+++ b/src/imagination/pco/pco_internal.h
@@ -667,7 +667,7 @@ static inline unsigned pco_igrp_variant(const pco_igrp *igrp,
       break;
    }
 
-   unreachable();
+   unreachable("");
 }
 
 /* Motions. */
@@ -808,7 +808,7 @@ static inline pco_block *pco_cf_node_first_block(pco_cf_node *cf_node)
       break;
    }
 
-   unreachable();
+   unreachable("");
 }
 
 /**
@@ -836,7 +836,7 @@ static inline pco_block *pco_cf_node_last_block(pco_cf_node *cf_node)
       break;
    }
 
-   unreachable();
+   unreachable("");
 }
 
 static inline struct list_head *pco_parent_cf_node_body(pco_cf_node *cf_node)
@@ -859,7 +859,7 @@ static inline struct list_head *pco_parent_cf_node_body(pco_cf_node *cf_node)
       break;
    }
 
-   unreachable();
+   unreachable("");
 }
 
 /**
@@ -903,7 +903,7 @@ static inline pco_block *pco_next_block(pco_block *block)
       break;
    }
 
-   unreachable();
+   unreachable("");
 }
 
 /**
@@ -948,7 +948,7 @@ static inline pco_block *pco_prev_block(pco_block *block)
       break;
    }
 
-   unreachable();
+   unreachable("");
 }
 
 /**
@@ -1087,7 +1087,7 @@ static inline pco_instr *pco_igrp_first_instr(pco_igrp *igrp)
       if (igrp->instrs[p])
          return igrp->instrs[p];
 
-   unreachable();
+   unreachable("");
 }
 
 /**
@@ -1102,7 +1102,7 @@ static inline pco_instr *pco_igrp_last_instr(pco_igrp *igrp)
       if (igrp->instrs[p])
          return igrp->instrs[p];
 
-   unreachable();
+   unreachable("");
 }
 
 /**
@@ -1259,7 +1259,7 @@ static inline enum pco_bits pco_bits(unsigned bits)
       break;
    }
 
-   unreachable();
+   unreachable("");
 }
 
 /* PCO ref checkers. */
@@ -1430,7 +1430,7 @@ static inline unsigned pco_ref_get_bits(pco_ref ref)
       break;
    }
 
-   unreachable();
+   unreachable("");
 }
 
 /**
@@ -1461,7 +1461,7 @@ static inline uint64_t pco_ref_get_imm(pco_ref ref)
       break;
    }
 
-   unreachable();
+   unreachable("");
 }
 
 /**
@@ -1578,7 +1578,7 @@ static inline enum pco_movw01 pco_ref_get_movw01(pco_ref ref)
       break;
    }
 
-   unreachable();
+   unreachable("");
 }
 
 /**
diff --git a/src/imagination/pco/pco_isa.h.py b/src/imagination/pco/pco_isa.h.py
index c5d74813405..bf00b528406 100644
--- a/src/imagination/pco/pco_isa.h.py
+++ b/src/imagination/pco/pco_isa.h.py
@@ -42,7 +42,7 @@ static unsigned ${bit_set.name}_bytes(enum ${bit_set.name}_variant variant)
    default: break;
    }
 
-   unreachable();
+   unreachable("");
 }
 
 static unsigned ${bit_set.name}_encode_field(uint8_t *bin, enum ${bit_set.name}_field field, uint64_t val)
@@ -71,7 +71,7 @@ static unsigned ${bit_set.name}_encode_field(uint8_t *bin, enum ${bit_set.name}_
       break;
    }
 
-   unreachable();
+   unreachable("");
 }
 
    % for bit_struct in bit_set.bit_structs.values():
diff --git a/src/imagination/pco/pco_map.h.py b/src/imagination/pco/pco_map.h.py
index b607ab43d4e..1edf29934fa 100644
--- a/src/imagination/pco/pco_map.h.py
+++ b/src/imagination/pco/pco_map.h.py
@@ -50,7 +50,7 @@ ${enum_map.type_to} ${enum_map.name}(${enum_map.type_from} val)
 
       % endfor
       default:
-         unreachable();
+         unreachable("");
       }
    }
    % else:
@@ -62,7 +62,7 @@ ${enum_map.type_to} ${enum_map.name}(${enum_map.type_from} val)
 
       % endfor
    default:
-      unreachable();
+      unreachable("");
    }
    % endif
 
@@ -124,7 +124,7 @@ static inline unsigned pco_map_reg_index(pco_ref ref)
       return pco_map_idx_bank(ref) | (ref.idx_reg.offset << 3);
    }
 
-   unreachable();
+   unreachable("");
 }
 
 static inline unsigned pco_map_reg_index_bits(pco_ref ref)
@@ -134,7 +134,7 @@ static inline unsigned pco_map_reg_index_bits(pco_ref ref)
    else if (pco_ref_is_idx_reg(ref))
       return 11;
 
-   unreachable();
+   unreachable("");
 }
 
 static inline
@@ -195,7 +195,7 @@ enum pco_src_variant pco_igrp_src_variant(const pco_igrp *igrp,
    }
 % endfor
 
-   unreachable();
+   unreachable("");
 }
 
 static inline
@@ -248,7 +248,7 @@ enum pco_dst_variant pco_igrp_dest_variant(pco_igrp *igrp)
    }
 % endfor
 
-   unreachable();
+   unreachable("");
 }
 
 % for encode_map in encode_maps.values():
@@ -303,7 +303,7 @@ void pco_map_igrp(pco_igrp *igrp, pco_instr *instr)
           info->type == PCO_OP_TYPE_PSEUDO ? "pseudo" : "hardware",
           info->str);
 
-   unreachable();
+   unreachable("");
 }
 
 static inline unsigned pco_igrp_hdr_map_encode(uint8_t *bin, pco_igrp *igrp)
@@ -360,7 +360,7 @@ static inline unsigned pco_igrp_hdr_map_encode(uint8_t *bin, pco_igrp *igrp)
       break;
    }
 
-   unreachable();
+   unreachable("");
 }
 
 % for encode_map in encode_maps.values():
@@ -378,7 +378,7 @@ unsigned ${encode_map.name}_map_encode(uint8_t *bin, pco_instr *instr, unsigned
       break;
    }
 
-   unreachable();
+   unreachable("");
 }
    % else:
 unsigned ${encode_map.name}_map_encode(uint8_t *bin, pco_instr *instr)
@@ -406,7 +406,7 @@ unsigned pco_instr_map_encode(uint8_t *bin, pco_igrp *igrp, enum pco_op_phase ph
       break;
    }
 
-   unreachable();
+   unreachable("");
 }
 
 static inline
@@ -462,7 +462,7 @@ unsigned pco_srcs_map_encode(uint8_t *bin, pco_igrp *igrp, bool is_upper)
       break;
    }
 
-   unreachable();
+   unreachable("");
 }
 
 static inline
@@ -536,7 +536,7 @@ unsigned pco_dests_map_encode(uint8_t *bin, pco_igrp *igrp)
       break;
    }
 
-   unreachable();
+   unreachable("");
 }
 #endif /* PCO_MAP_H */"""
 
diff --git a/src/imagination/pco/pco_nir.c b/src/imagination/pco/pco_nir.c
index 1d8558206b1..45735592bc9 100644
--- a/src/imagination/pco/pco_nir.c
+++ b/src/imagination/pco/pco_nir.c
@@ -390,7 +390,7 @@ static void gather_data(nir_shader *nir, pco_data *data)
       break;
 
    default:
-      unreachable();
+      unreachable("");
    }
 }
 
diff --git a/src/imagination/pco/pco_nir_pvfio.c b/src/imagination/pco/pco_nir_pvfio.c
index 8aafb8a600f..c1f3a956842 100644
--- a/src/imagination/pco/pco_nir_pvfio.c
+++ b/src/imagination/pco/pco_nir_pvfio.c
@@ -162,7 +162,7 @@ static bool lower_pfo(nir_builder *b, nir_instr *instr, void *cb_data)
                              .io_xfb2 = nir_intrinsic_io_xfb2(intr));
          util_dynarray_append(&state->stores, nir_intrinsic_instr *, store);
       } else {
-         unreachable();
+         unreachable("");
       }
 
       /* Remove the old store. */
diff --git a/src/imagination/pco/pco_nir_vk.c b/src/imagination/pco/pco_nir_vk.c
index 8b61d75da7e..18b88a68d6c 100644
--- a/src/imagination/pco/pco_nir_vk.c
+++ b/src/imagination/pco/pco_nir_vk.c
@@ -83,7 +83,7 @@ static nir_def *lower_vk(nir_builder *b, nir_instr *instr, void *cb_data)
       break;
    }
 
-   unreachable();
+   unreachable("");
 }
 
 /**
diff --git a/src/imagination/pco/pco_opt.c b/src/imagination/pco/pco_opt.c
index 71a4a3cfb69..24ca5d83884 100644
--- a/src/imagination/pco/pco_opt.c
+++ b/src/imagination/pco/pco_opt.c
@@ -105,7 +105,7 @@ static inline bool pco_opt_prep_mods(pco_shader *shader,
                break;
 
             default:
-               unreachable();
+               unreachable("");
             }
 
             /* Source can already have the mod set. */
@@ -140,7 +140,7 @@ static inline bool pco_opt_prep_mods(pco_shader *shader,
             break;
 
          default:
-            unreachable();
+            unreachable("");
          }
 
          pco_builder b = pco_builder_create(func, pco_cursor_before_instr(mod));
diff --git a/src/imagination/pco/pco_print.c b/src/imagination/pco/pco_print.c
index 3dc5005ac1f..27a342a2c45 100644
--- a/src/imagination/pco/pco_print.c
+++ b/src/imagination/pco/pco_print.c
@@ -236,7 +236,7 @@ static void pco_print_ref_color(pco_print_state *state, pco_ref ref)
       break;
    }
 
-   unreachable();
+   unreachable("");
 }
 
 /**
@@ -288,7 +288,7 @@ static void _pco_print_ref(pco_print_state *state, pco_ref ref)
          break;
 
       default:
-         unreachable();
+         unreachable("");
       }
       pco_printf(state, "%s", pco_dtype_str(ref.dtype));
       break;
@@ -309,7 +309,7 @@ static void _pco_print_ref(pco_print_state *state, pco_ref ref)
       break;
 
    default:
-      unreachable();
+      unreachable("");
    }
 
    unsigned chans = pco_ref_get_chans(ref);
@@ -410,7 +410,7 @@ static void pco_print_instr_mods(pco_print_state *state,
          break;
 
       default:
-         unreachable();
+         unreachable("");
       }
    }
 }
@@ -474,7 +474,7 @@ static void _pco_print_instr(pco_print_state *state, pco_instr *instr)
       }
 
       default:
-         unreachable();
+         unreachable("");
       }
       printed = true;
    } else if (!list_is_empty(&instr->phi_srcs)) {
@@ -548,7 +548,7 @@ static void _pco_print_phase(pco_print_state *state,
    default:
       break;
    }
-   unreachable();
+   unreachable("");
 }
 
 /**
@@ -977,7 +977,7 @@ pco_print_func_sig(pco_print_state *state, pco_func *func, bool call)
          break;
 
       default:
-         unreachable();
+         unreachable("");
       }
    }
 
@@ -1046,7 +1046,7 @@ static void _pco_print_cf_node(pco_print_state *state, pco_cf_node *cf_node)
       break;
    }
 
-   unreachable();
+   unreachable("");
 }
 
 /**
@@ -1214,7 +1214,7 @@ void pco_print_cf_node_name(pco_shader *shader, pco_cf_node *cf_node)
       break;
    }
 
-   unreachable();
+   unreachable("");
 }
 
 /**
diff --git a/src/imagination/pco/pco_trans_nir.c b/src/imagination/pco/pco_trans_nir.c
index 11950bda4ad..d8f2c45a6dd 100644
--- a/src/imagination/pco/pco_trans_nir.c
+++ b/src/imagination/pco/pco_trans_nir.c
@@ -310,7 +310,7 @@ trans_load_input_fs(trans_ctx *tctx, nir_intrinsic_instr *intr, pco_ref dest)
          break;
 
       default:
-         unreachable();
+         unreachable("");
       }
    }
 
@@ -380,7 +380,7 @@ trans_load_input_fs(trans_ctx *tctx, nir_intrinsic_instr *intr, pco_ref dest)
 
    default:
       /* Should have been previously lowered. */
-      unreachable();
+      unreachable("");
    }
 }
 
@@ -556,7 +556,7 @@ static pco_instr *trans_intr(trans_ctx *tctx, nir_intrinsic_instr *intr)
       printf("Unsupported intrinsic: \"");
       nir_print_instr(&intr->instr, stdout);
       printf("\"\n");
-      unreachable();
+      unreachable("");
       break;
    }
 
@@ -741,7 +741,7 @@ trans_scmp(trans_ctx *tctx, nir_op op, pco_ref dest, pco_ref src0, pco_ref src1)
       break;
 
    default:
-      unreachable();
+      unreachable("");
    }
 
    return pco_scmp(&tctx->b, dest, src0, src1, .tst_op_main = tst_op_main);
@@ -789,7 +789,7 @@ static pco_instr *trans_logical(trans_ctx *tctx,
       break;
 
    default:
-      unreachable();
+      unreachable("");
    }
 
    return pco_logical(&tctx->b, dest, src0, src1, .logiop = logiop);
@@ -1000,7 +1000,7 @@ static pco_instr *trans_alu(trans_ctx *tctx, nir_alu_instr *alu)
       printf("Unsupported alu instruction: \"");
       nir_print_instr(&alu->instr, stdout);
       printf("\"\n");
-      unreachable();
+      unreachable("");
    }
 
    if (!pco_ref_is_scalar(dest))
@@ -1077,7 +1077,7 @@ static pco_instr *trans_instr(trans_ctx *tctx, nir_instr *ninstr)
       break;
    }
 
-   unreachable();
+   unreachable("");
 }
 
 /**
@@ -1213,7 +1213,7 @@ static pco_block *trans_cf_nodes(trans_ctx *tctx,
       }
 
       default:
-         unreachable();
+         unreachable("");
       }
 
       cf_node->parent = parent_cf_node;
diff --git a/src/imagination/pco/pco_validate.c b/src/imagination/pco/pco_validate.c
index 16aaec044fd..2d7fbbd6d7c 100644
--- a/src/imagination/pco/pco_validate.c
+++ b/src/imagination/pco/pco_validate.c
@@ -97,7 +97,7 @@ static void pco_assert(struct val_state *state,
          break;
 
       default:
-         unreachable();
+         unreachable("");
       }
 
       printf(" (");
@@ -344,7 +344,7 @@ static inline bool ref_is_in_map(pco_ref ref, enum pco_ref_map ref_maps)
          break;
 
       default:
-         unreachable();
+         unreachable("");
       }
    }
 
diff --git a/src/imagination/vulkan/pvr_descriptor_set.c b/src/imagination/vulkan/pvr_descriptor_set.c
index 64530231220..ec38c8eac55 100644
--- a/src/imagination/vulkan/pvr_descriptor_set.c
+++ b/src/imagination/vulkan/pvr_descriptor_set.c
@@ -81,7 +81,7 @@ static unsigned pvr_descriptor_size(VkDescriptorType type)
    default:
       mesa_loge("Unsupported descriptor type %s.\n",
                 vk_DescriptorType_to_str(type));
-      unreachable();
+      unreachable("");
    }
 }
 
@@ -510,7 +510,7 @@ void pvr_UpdateDescriptorSets(VkDevice _device,
          break;
 
       default:
-         unreachable();
+         unreachable("");
       }
    }
 
diff --git a/src/imagination/vulkan/pvr_pipeline.c b/src/imagination/vulkan/pvr_pipeline.c
index b159b96fce2..c0d14385c61 100644
--- a/src/imagination/vulkan/pvr_pipeline.c
+++ b/src/imagination/vulkan/pvr_pipeline.c
@@ -1739,7 +1739,7 @@ static void pvr_alloc_vs_varyings(pco_data *data, nir_shader *nir)
          break;
 
       default:
-         unreachable();
+         unreachable("");
       }
    }
 
@@ -2019,7 +2019,7 @@ pvr_preprocess_shader_data(pco_data *data,
    }
 
    default:
-      unreachable();
+      unreachable("");
    }
 
    pvr_init_descriptors(data, nir, layout);
@@ -2061,7 +2061,7 @@ pvr_postprocess_shader_data(pco_data *data,
    }
 
    default:
-      unreachable();
+      unreachable("");
    }
 
    pvr_setup_descriptors(data, nir, layout);
diff --git a/src/vulkan/runtime/vk_meta.h b/src/vulkan/runtime/vk_meta.h
index 7f3c068e8a2..76f97d1dac7 100644
--- a/src/vulkan/runtime/vk_meta.h
+++ b/src/vulkan/runtime/vk_meta.h
@@ -430,7 +430,7 @@ vk_image_view_type_to_sampler_dim(VkImageViewType view_type)
       return GLSL_SAMPLER_DIM_3D;
 
    default:
-      unreachable();
+      unreachable("");
    }
 }
 
@@ -450,7 +450,7 @@ vk_image_view_type_is_array(VkImageViewType view_type)
       return false;
 
    default:
-      unreachable();
+      unreachable("");
    }
 }