aco: clobber scc in s_bfe_u32 in get_alu_src()

Signed-off-by: Rhys Perry <pendingchaos02@gmail.com>
Reviewed-by: Daniel Schürmann <daniel@schuermann.dev>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4639>

diff --git a/src/amd/compiler/aco_instruction_selection.cpp b/src/amd/compiler/aco_instruction_selection.cpp
index f2fbfa46851df522d068ac1fa73f46fcea589a4e..4366e8b2362a6903e4dfe935817c95bf9b002867 100644 (file)
--- a/src/amd/compiler/aco_instruction_selection.cpp
+++ b/src/amd/compiler/aco_instruction_selection.cpp
@@ -501,10 +501,11 @@ Temp get_alu_src(struct isel_context *ctx, nir_alu_src src, unsigned size=1)
          return vec;
 
       Temp dst{ctx->program->allocateId(), s1};
-      aco_ptr<SOP2_instruction> bfe{create_instruction<SOP2_instruction>(aco_opcode::s_bfe_u32, Format::SOP2, 2, 1)};
+      aco_ptr<SOP2_instruction> bfe{create_instruction<SOP2_instruction>(aco_opcode::s_bfe_u32, Format::SOP2, 2, 2)};
       bfe->operands[0] = Operand(vec);
       bfe->operands[1] = Operand(uint32_t((src.src.ssa->bit_size << 16) | (src.src.ssa->bit_size * swizzle)));
       bfe->definitions[0] = Definition(dst);
+      bfe->definitions[1] = Definition(ctx->program->allocateId(), scc, s1);
       ctx->block->instructions.emplace_back(std::move(bfe));
       return dst;
    }